#Free OST To PST Converter

[esofttoolsosttopstrecovery]

The best OST file converter program for converting OST files to Outlook PST format is eSoftTools OST to PST Recovery program, which can also be used to recover OST files. In addition to many additional formats, including vCard, EML, HTML, Zimbra TGZ, MBOX, Office 365, Yahoo, Gmail, MSG, ICS, and EMLX, it can convert OST files to PST. This program supports all versions of Windows OS and Outlook and has a lot of options that allow users to convert files very gently. Additionally, offer a free demo version to ensure consumer happiness. The company offers all consumers a 30-day money-back guarantee if this program isn't functioning properly.

Visit more:- https://www.esofttools.com/ost/

[vashu2004]

Check Out:- Migrate Outlook OST File to PST by OST Converter Free

[inboxrepairtools]

OST recovery and OST to PST converter tool

Any Outlook user who is looking for the ideal OST recovery and OST to PST converter tool will find that it can be very confusing to explore and figure out which tool is the most reliable. The OST Extractor Pro, developed by USL Software is widely considered to be the most accessible and safest converter tool. OST Recovery and OST to PST Converter Tool Before trying the free demo version, many…

[convert-outlook-ost-to-pdf]

Download OST File to PDF by Free Converter

Saves OST to PDF format without any restrictions and challenging procedures by the free WebbyAcad OST converter tool. With this software user make the bulk batch conversion of their Outlook OST file. Those orphan OST files are also directly exportable with this tool which is totally separated from Microsoft Outlook. This means users don't need to first convert OST to PST and then convert the OST Email files into Adobe PDF.

Steps to use WebbyAcad OST Converter Tool :-

Obtain software from their product page and then open it on the desktop.

Open the OST File by " Add file " and preview the file email data and attachments.

Select the file format as PDF by dropdown.

Choose file saving location for PDF files otherwise it saves on Desktop.

As the Last press the export button.

Key features of the OST converter Software:-

Bulk File conversion.

Maintain the File Authenticity.

Repair Corrupted OST file.

Compatible with All kinds of Windows OS.

Free updates and 24/7 service support.

Free Demo Trial.

[jhonharlley]

Top Software Solutions for Converting ost to pst file

Converting an MBOX to a PST (Personal Storage Table) file is a common task for people who need to transfer or back up Outlook data. Several software solutions can perform this task efficiently. Here are some of the top MBOX to PST converter tools:

Webbyacad online Converter software for MBOX to PST

Key Features: webbyacad tool is one of the MBOX widely used MBOX to PST converters. It supports large MBOX files and recovers all mailbox items like emails, contacts, calendars, tasks, notes, and journals.

Pros:

User-friendly interface.

Supports encrypted and orphaned MBOX files.

Allows selective conversion of items.

Cons:

The free version only allows previewing converted files but not saving them.

Final Recommendation: For general use with robust features, webbyacad TOOL Converter for MBOX* stand out for their reliability, recovery features, and versatility. If budget is a concern.

[emailapp]

Move Mac Outlook to Apple Mail Instantly and Effortlessly!

Move Mac Outlook to Apple Mail without any effort

If you don't have too much time on your hands, moving Mac Outlook to Apple Mail can be the worst task can be quite displeasing to you. All the manual techniques and traditional software applications to transfer data too much time. They have plenty of other complications as well, but for a productive user, lack of good conversion speed can be major cause for frustration.

If you are looking for an instant conversion tool, you came to the right place.

Best App to Move Outlook to Apple Mail

USL Software is a, well, software company that's been well grounded in email migration industry for quite some years now. They are famous for offering their excellent tools. These are usually with eccentric approach but are quite powerful and effective. Their recent software program is called "OLM Extractor Pro," and it has everything you need to move Mac Outlook to Apple Mail instantly and without efforts.

USL Software worked to make the tool powerful and accurate without making it difficult to use. You will get a basic interface through which you can easily and intuitively interact with its advanced features. It fits the requirements of both an IT expert for large-scale migration projects and a home user for a smaller-scale project.

It's central conversion framework can convert the items that are usually tricky.

Here are two major examples:

Non-English text: It features the full support for conversion of non-English text. This includes languages such as Japanese and Korean, which are encoded with double-byte characters that are usually very tricky to integrate into conversion logic due to their complexity relative to ASCII characters.

Folder Hierarchy: It features the full support for converting emails with their correct folder hierarchy. Almost all users now arrange their emails in particular folders, and losing the hierarchy of these folders is a major issue with conventional tools. "OLM Extractor Pro" works with a very precise set of algorithms that maps the structure compromising the integrity.

It also adds plenty of options to cater to the needs of different users with unique needs. Such as:

Merge items: With conventional tools, it can get messy with the conversion of calendar items and contacts because they convert each entry into a separate ICS and VCF file respectively. "OLM Extractor Pro" allows you to merge all contacts and calendar entries from a single folder into a single VCF and ICS file respectively.

Filter Folders during Selection: After you load the OLM files, you can see all the folders in their order under the preview section. You can mark the ones that you want to convert or un-mark the ones you want to exclude or dismiss. Moreover, you can also filter the folders according to the forms of data inside them, such as, mails, contacts, and calendar entries. You can also ignore all empty folders in a single click by ticking the box that says "ignore all empty folders."

Most tools would turn the unread emails into read emails, which can be quite disappointing. "OLM Extractor Pro" has a dedicated logic to detect the read/unread status, and it not protects that status, it also gives you an option to save them into separate folders.

You May Also Like:

OST to PST Converter

MBOX to PST Converter

Download to Move Mac Outlook to Apple Mail

Get it here: http://www.olmextractorpro.com/download-now/.

Try "OLM Extractor Pro" today. You can download the setup using the link given here and use it in a free trial mode. You will see how easy and effective. It can be to move Mac Outlook to Apple Mail in an instant and without much efforts.

Move Mac Outlook to Apple Mail instantly without going around in circles. Abandon your old inefficient tools and try this one by USL Software.

[recoverytools]

What Is The Best Software To Convert OST to PST for MS Outlook?

The best software to convert OST to PST for MS Outlook often includes features like ease of use, reliability, and comprehensive support for various versions of Outlook. Among the top-rated options are Stellar Converter for OST, 

which is known for its intuitive interface and robust performance, and Kernel for OST to PST Converter Tool, praised for its speed and accuracy in handling large files and complex conversions. Another highly recommended tool is SysTools OST to PST Converter, 

which offers a straightforward conversion process and additional features like previewing emails before conversion and selective data export. These tools not only ensure a seamless conversion process but also offer additional functionalities to recover and manage your Outlook data efficiently.

How Can I Manually Convert An OST file To A PST file In MS Outlook?

Here are the steps to manually convert an OST file to a PST file in MS Outlook:

Open MS Outlook: Launch Microsoft Outlook on your computer.

Create a New PST File: Go to "File" > "Account Settings" > "Account Settings." In the "Data Files" tab, click "Add" and create a new Outlook Data File (.PST).

Export Data to PST: Go to "File" > "Open & Export" > "Import/Export."

Choose Export Option: Select "Export to a file" and click "Next."

Select PST Format: Choose "Outlook Data File (.PST)" and click "Next."

Choose OST Folder: Select the OST file's folder you want to convert (e.g., Inbox, Sent Items) and check "Include subfolders." Click "Next."

Select Destination: Browse to choose the location where you want to save the new PST file and name it. Click "Finish."

Set Password (Optional): You can set a password for the PST file, or leave it blank and click "OK."

Your OST file data will now be exported to the newly created PST file.

Are There Free Tools Available To Convert OST to PST for MS Outlook?

Yes, there are free tools available to convert OST to PST for MS Outlook, but they often come with limitations. Some popular free tools include OST2PST Kit and Free OST to PST Converter. These tools typically offer basic conversion capabilities but might have restrictions on the size of the files or the number of conversions.

For full features and better reliability, paid versions of these tools or more comprehensive software like Stellar Converter for OST or Kernel for OST to PST Converter are recommended. These paid tools provide more robust and efficient conversion options without limitations.

What Are The Steps To Convert An Ost File To A Pst File In MS Outlook?

Here are the steps to convert an OST file to a PST file in MS Outlook:

Open Outlook: Start Microsoft Outlook on your computer.

Go to Import/Export: Click on "File," then "Open & Export," and select "Import/Export."

Choose Export: Select "Export to a file" and click "Next."

Select PST Format: Choose "Outlook Data File (.PST)" and click "Next."

Select Folders: Pick the folders from the OST file you want to convert, check "Include subfolders," and click "Next."

Choose Save Location: Browse to select where you want to save the new PST file, name it, and click "Finish."

Set Password (Optional): You can set a password for the PST file or leave it blank and click "OK."

Your OST file data will now be converted and saved as a PST file.

Can I Convert An OST File To PST without Outlook Installed?

Yes, you can convert an OST file to PST without Outlook installed by using third-party conversion tools. These specialized software programs, such as Stellar Converter for OST or Kernel for OST to PST Converter, can directly convert OST files to PST format without needing Outlook on your computer. 

They are designed to work independently of Outlook, making the conversion process simple and accessible even if you don’t have Outlook installed. This is especially useful if you need to access your emails and data from an OST file on a different system.

How Do I Recover Data From A Corrupt OST File And Convert It To PST?

Here are the steps to recover data from a corrupt OST file and convert it to PST:

Download Software: Download and install a specialized tool like Stellar Repair for Outlook or Kernel for OST to PST Converter.

Open the Tool: Launch the installed software on your computer.

Select OST File: Use the tool to browse and select the corrupt OST file you want to repair.

Scan the File: Start the scanning process to repair the corrupt OST file.

Preview Data: Once the scan is complete, preview the recoverable data displayed by the tool.

Save as PST: Choose the option to save the recovered data and select "PST" as the file format.

Save Location: Choose the location on your computer where you want to save the new PST file.

Finish: Complete the process by clicking "Save" or "Finish," and the tool will create the PST file with your recovered data.

What Is The Difference Between OST and PST files In Ms Outlook?

OST and PST files in MS Outlook serve different purposes. An OST (Offline Storage Table) file allows you to work offline by storing a copy of your mailbox on your computer, which syncs with the Exchange server when you're online again. 

This is used with accounts like Exchange, Office 365, and Outlook.com. On the other hand, a PST (Personal Storage Table) file stores emails, contacts, and calendar data on your computer, and is commonly used for email backup or archiving, as well as with POP3 and IMAP accounts. Essentially, OST is for offline use with server synchronization, while PST is for personal data storage and backup.

How Can I Convert An Orphaned Ost File To A Pst File In Ms Outlook?

Converting an orphaned OST file to a PST file in MS Outlook involves these simple steps:

Open MS Outlook: Launch Microsoft Outlook on your computer.

Create a New PST File: Navigate to "File" > "Account Settings" > "Account Settings." In the "Data Files" tab, click "Add" and create a new Outlook Data File (.pst).

Import OST Data: Go to "File" > "Open & Export" > "Import/Export."

Select Import Option: Choose "Import from another program or file" and click "Next."

Choose File Type: Select "Outlook Data File (.pst)" and click "Next."

Browse for OST File: Click "Browse" to locate and select the orphaned OST file you want to convert.

Set Import Options: Choose how you want to handle duplicates and click "Next."

Select Destination: Choose the newly created PST file as the destination for importing the OST data.

Complete Import: Click "Finish" to start the import process.

Access Data: Once the import is complete, you can access the data from the orphaned OST file in the PST file within MS Outlook.

[zittasoftware]

https://zittasoft.com/converter/ost-to-pst.html

Try Zitta OST to PST Converter and easily convert healthy, orphaned, and damaged OST files into PST format. Download this application on Windows OS for free and make OST to PST conversion process a breeze.

[atsosttopstconverter]

Resolving Outlook Mailbox Size Issues: Fixing Errors After Archiving

In the digital age, where email communication reigns supreme, maintaining an efficient and organized mailbox is imperative. Microsoft Outlook, a widely used email client, offers a handy feature known as "Archiving" to help users manage their mailbox and keep it clutter-free. However, what if, despite your best archiving efforts, your Outlook mailbox size refuses to shrink? This blog delves into this common predicament, exploring the reasons behind it and providing practical solutions to resolve the issue.

The Archiving Conundrum

Archiving in Outlook is a powerful tool, designed to free up space in your mailbox by moving older emails, attachments, and other items to a separate location. However, there's a widespread misconception that archiving these emails will directly reduce the mailbox size as displayed in Outlook. This is not the case. The mailbox size, as indicated by Outlook, remains virtually unaffected even after successful archiving. To understand why this happens, we must first uncover the mechanics of archiving in Outlook.

The Archiving Mechanism

When you use the archiving feature in Outlook, it operates by creating a separate file, usually named "Archive.pst" (for Windows users) or "Outlook Archive" (for Mac users). This file serves as a repository for all the emails and attachments you've chosen to archive. The archived data is effectively moved from your primary mailbox to this external file.

However, the crucial point to note is that Outlook's mailbox size indicator primarily tracks the size of your main mailbox and does not consider the Archive.pst or Outlook Archive file. As a result, even after archiving substantial amounts of data, the mailbox size displayed in Outlook remains relatively constant. This discrepancy can lead to confusion and frustration for users who expect their mailbox size to decrease significantly after archiving.

Solutions to Reduce Mailbox Size

Understanding why your mailbox size remains unchanged after archiving is the first step. To effectively reduce the size of your Outlook mailbox, you need to implement specific strategies and solutions:

1. Empty the "Deleted Items" Folder:

Even deleted items occupy space until they are permanently removed.

2. Compact Your Data File (PST/OST):

You can initiate a compacting process in Outlook to recover space. Go to "File" > "Account Settings" > "Data Files" > select your data file > click "Settings" > navigate to the "Advanced" tab and select "Outlook Data File Settings." Click "Compact Now."

3. Verify Your Archive Settings:

Ensure that your archiving settings are correctly configured. Go to "File" > "Options" > "Advanced" > "AutoArchive Settings" and review the settings to align them with your archiving needs.

4. Manually Move Archived Items:

If your Archive.pst or Outlook Archive file has grown unwieldy, consider manually moving older items to a new PST file. This practice helps distribute the data and reduce the size of your primary mailbox.

5. Remove Unnecessary Attachments:

For emails with large attachments, consider saving the attachments outside of Outlook and removing them from your emails. Bulky attachments can contribute significantly to a bloated mailbox.

6. Explore Cloud-Based Email Services:

Consider transitioning to cloud-based email services that often offer more storage space and simplified archiving features.

7. Regularly Review and Delete Old Emails:

Cultivate the habit of reviewing and deleting emails that have outlived their relevance. This is an essential practice in keeping your mailbox lean and organized.

Direct Solution to Fix Outlook Mailbox Size Issues with ATS OST To PST Converter

Resolving Outlook mailbox size issues is crucial for efficient email management, and ATS OST To PST Converter offers a powerful solution. This tool empowers you to tackle the challenge of a bloated mailbox by efficiently converting OST files to PST format.

By doing so, you can achieve the following benefits:

Reduced Mailbox Size: The conversion process effectively reduces the size of your mailbox, freeing up space for new emails and improved performance.

Efficient Data Management: ATS OST To PST Converter allows you to manage your Outlook data more effectively by organizing it in a PST file. This ensures that your emails are stored in an easily accessible and organized manner.

Data Backup: Converting to PST format serves as a valuable backup, protecting your email data from potential data loss or corruption.

Compatibility: PST files are widely supported across various email clients and platforms, ensuring that your email data remains accessible and secure.

Split Outlook PST file: ATS OST to PST Converter tools to split PST files, which can be especially useful when dealing with large PST files. These tools often provide more flexibility in terms of how you want to split the file, such as by date, size, or specific folders

Conclusion

In the digital landscape, where email is the lifeblood of communication, maintaining an organized and efficient mailbox is non-negotiable. The conundrum of your mailbox size not reducing after archiving is a puzzle with a clear solution. By comprehending the mechanics of archiving and implementing the suggested strategies, you can ensure your mailbox remains uncluttered, responsive, and, most importantly, tailored to your needs. As you navigate your digital communication landscape, keep in mind that a tidy inbox is not only an efficient one but also a reflection of your commitment to streamlined and productive communication.

[sysvita]

Simplifying Outlook Migration with SysVita OST to PST Converter

Migrating email data from one Outlook account to another, especially when dealing with OST (Outlook Offline Storage Table) files, can be a challenging task. This article explores the complexities of free methods for Outlook migration and the advantages of using SysVita OST to PST Converter, a trusted third-party tool designed to simplify this process.

Free Methods for Outlook Migration

Before diving into the benefits of SysVita OST to PST Converter, let's briefly discuss the limitations of free methods for Outlook migration:

Manual Export and Import

While manual export and import are free, they can be time-consuming and complicated.

Users might encounter issues such as data loss, corruption, or difficulties maintaining folder hierarchy.

Outlook Native Export

Microsoft Outlook provides an export feature, but it may not be as user-friendly as desired.

The native export option may not support all types of data, potentially resulting in data gaps during migration.

SysVita OST to PST Converter: Simplifying Outlook Migration

SysVita OST to PST Converter is a third-party tool designed to streamline and simplify the Outlook migration process. Here are some key advantages of using this tool:

Comprehensive Conversion

SysVita OST to PST Converter can transfer not only emails but also contacts, calendars, tasks, notes, and attachments, providing a complete migration solution.

Preservation of Data Integrity

This tool ensures the integrity of your data during the conversion process, minimizing the risk of data loss or corruption.

Efficiency and Reliability

SysVita OST to PST Converter automates the migration process, reducing the chances of errors and making it suitable for both small-scale and large-scale migrations.

User-Friendly Interface

The software features an intuitive interface that caters to users of varying technical expertise, making the migration process accessible to everyone.

Batch Conversion

SysVita allows users to convert multiple OST files to PST format in one go, saving time and effort.

Selective Migration

Users can choose specific folders or items to migrate, giving them full control over the process.

Technical Support

SysVita provides customer support, ensuring that users have assistance in case of any migration issues or inquiries.

Positive User Feedback

SysVita OST to PST Converter has received positive reviews and recommendations from users, reinforcing its reputation as a reliable tool for Outlook migration.

Conclusion

When it comes to Outlook migration, especially when dealing with OST files, free methods can be challenging, unreliable, and prone to data loss or corruption. SysVita OST to PST Converter offers a dependable, efficient, and user-friendly alternative, simplifying the transition and ensuring that your valuable email data, along with other elements like contacts, calendars, and tasks, is seamlessly migrated. For Outlook migration, SysVita OST to PST Converter stands as a robust solution that simplifies the process and guarantees data integrity, making it an excellent choice for users seeking a hassle-free migration experience.

[iampbackup001]

If you are looking for the best solution OST to NSF Converter Software? So, eSoftTools OST to PST Converter is an amazing software in comparison to other software because of works very smartly. You can download the free software with a simple click. This software is working on all Windows Operating Systems including older editions. It provides a free demo session for all new users.

Read More -

[generalobjectcandy]

Export Offline OST to PST Files in Outlook Get hassle-free solution through eSoftTools OST to PST Converter Software to export offline OST to PST files in Outlook or many other file types such as:- EML, ICS, MBOX, EMLX, Gmail, Yahoo Mail, Outlook .com, Office 365, etc. Read More:- https://www.esofttools.com/blog/export-offline-ost-to-pst-files-in-outlook/

[samsamithsblog]

This eSoftTools Free OST to PST Converter Tool can convert OST to PST for free, including activities, contact, schedules, appointments, emails, notes, attachments, journals, msgs, chats, and other OST mailbox attributes. The application offers a simple and straightforward user interface. EMLX, EML, HTML, MSG, MBOX, Yahoo, Gmail, Office 365, and ICS are among the file types that can be saved from an OST file. The company eSoftTools offers a free trial demo that allows you to obtain and save 25 items for no charge.

[sysinspirefacebook]

@SysInspire offer this free OST to PST Converter to convert your OST files to PST files with all OST mailbox items. Before conversion, it can recover all damaged OST files data without any technical issue.

[softwareimperial-blog]

Process to Convert OST to PST, Easy Steps for OST to PST Recovery. Find here easy way to Convert OST to PST tool to recover damaged OST, free OST to PST converter to export, migrate & convert OST to PST. Steps to Convert OST File in PST Format.

[sysvita]

How to Convert OST file to PST File in Outlook 2019/2016/2013/2010/2007

Why do we need to convert Outlook OST to PST

The OST file contains all your mail items in an offline mode on your hard drive. Every time you log in to your account, all the mail items are synchronized and downloaded into this. These OST files work in synchronization with the MS Outlook PST file. It helps in keeping the mailbox up-to-date with new mails, meeting request, delivery reports etc. However, there are situations when such mail items become inaccessible. In such a situation, you need to convert mails in the OST file into a different Outlook compatible file format like PST.

Quick Solution: Try Sysvita Converter for OST to convert Exchange OST file to PST in few steps. Software Supports Convert OST into multiple saving option with Google, Office 365 file type & Repair Corrupt OST File for all MS Outlook versions: Outlook 2019, 2016, 2013, 2010, 2007, 2003, 2002, and 2000.

Some of the reasons, when it becomes necessary to import ost into pst, are mentioned below.

MS-Exchange server can unexpectedly crash due to power failure, malicious software, virus attacks, or any other reason.

In the case of Exchange Server downtime or Exchange Server maintenance, you will not be able to access your mailbox. However, at times it becomes very necessary to have access to the mailbox items.

By converting Outlook OST to PST file format, the data can be recovered even after accidental deletion of user mailboxes on the Exchange server.

Converting OST to PST helps in migrating the data from one place to another. This is very helpful in case the organization is shifting, or you want to move your important data on a different system.

While working with an MS Outlook client, you might come across the following error messages.

'Your offline folder file could not be configured.\\ComputerName\FolderName\Outlook.ost.'

'The operation failed due to a registry or installation problem. Restart Outlook and try again. If the problem persists, please reinstall.' Also, the following message might appear when you are working in a networked environment and the system having the OST file is not shared.

The OST file gets corrupt due to several reasons, as mentioned below.

Software related issues

Unexpected hardware failures

Abnormal termination

Application shutdown

Damage induced on the database

Server breakdown

Virus Attacks

Trojans Infections

Lack of Storage Space

Accidental deletion of the user account

Here's How you can convert OST to PST File

Method 1: Export mailbox as a PST file

Login to Outlook with the Exchange account that was used to create the OST files. And to export the OST mailboxes to PST, follow the simple procedure:

Go to Files >Open & Export and click Import & Export.

Select Export to a file; then click Next.

Select the second option—Outlook Data File (.pst)—and click Next.

Select the folder which you want to export and click Next.

Browse the location where you want to save the new PST file and choose the options regarding the duplicate items.

Convert OST File to PST File using SysVita OST Software

Sysvita Software for Exchange OST Recovery is a powerful tool to convert corrupt OST files into PST files. The Microsoft OST to PST converter software is highly recommended by MVPs & Exchange Experts for its ability to repair and safely convert all Exchange mailbox objects within OST files into Outlook importable PST file.

The Sysvita software OST PST conversion tool converts inaccessible OST files into easily accessible MS Outlook PST files. It actually doesn't matter even if Exchange Server has gone corrupt, the tool can easily repair the corrupt OST file and restore the entire mailbox quite easily. Download Online OST to PST Converter to preview your mailbox data.

This Sysvita Software help you easily convert your OST File to PST File Sometimes you may experience an error that the OST is not an Outlook Data file; this happens when you try to open an encrypted OST file. In such situation, Sysvita Software Converter for OST easily converts the inaccessible encrypted OST file to outlook PST file. OST PST Converter tool supports all versions of Outlook such as 2019, 2016, 2013, 2010, 2007, 2003, 2002, and 2000.

Some Most Important features of Sysvita OST to PST Converter Software.

Sysvita OST to PST Converter software support encrypted & password Protected OST file.

Repair corrupted offline OST file and Recover Mailbox Data.

Repair & Recover OST Mails data easily Preview before Conversion.

100% help to Retrieve Offline OST File Mails Properties and Component Such as Inbox, Outbox, Sent Items, Drafts, Deleted Items, Contacts, Calendar, Tasks, Notes, Journals etc. and recover data Save into Outlook PST file formats.

Faster Conversion Process to Converter OST to PST File.

Multiple File formats saving option to Save OST mailbox database.

This Software recover any size of OST file data.

Users Directly Export offline OST file to office365, Outlook.com and Exchange Server.

Migrate Offline OST file Into Web-based Google Mail Account.

No requirement Install Outlook in System of Conversion Process.

Software support 32 bit & 64 Bit Outlook & Windows.

Read More: How to Manually Convert OST file into Gmail Account Conclusion

if you convert OST FIle to PST File manually you have a huge risk of loosing data and corrupting your file it will damage or permanetlty loose your file if you know how to do it manually step by step then only take risk of doing it manually otherwise you can choose Sysvita software it will guide you step by step and you can easily Convert your OST file to PST covering all your doubts and risk it will make your data save without any lose.