If you want to open someone else’s OST file such as a client, colleagues, or any friend then this post will be useful for you. In this guide, we will share all proven techniques to access another user’s OST file by manually and using OST to PST Converter.

Microsoft Outlook is one of the most popular desktop email clients as it is specially used for corporate, organization or personal purposes. It stores all its mailbox data in OST and PST file depending on configuration. If you have configured Microsoft 365, Exchange, or any IMAP account using IMAP Server then it will create an OST file in your local drive if you use POP then it will configure PST on your Outlook default location.

Reasons to Open Another User OST File

• If a user wants to access a client OST file to access project purpose data.
• When an employee leaves the organization or their account is deactivated then it becomes crucial to access the OST file.
• If the user 's primary mailbox is corrupted or data is accidentally deleted, opening an OST file can help to restore crucial information.
• When consolidating mailboxes or migrating to a new server or platform, IT teams may need to access multiple user OST files.
• OST file may store or share delegated mailboxes, Opening another user OST file allows offline access.

How to Open Someone Else OST File?

If you have access another user Outlook credentials then you can configured on your Outlook or may ask to another user to export in PST file by using Outlook import or export file settings by following instructions as we have explained below:

1. First, open Microsoft Outlook and click on the file.
2. Press open>import/export>Export file.
3. Choose Outlook PST file and select folders.
4. Browse destination path and press finish.

Drawbacks of Manual Method

• It will take lots of time to export depending on the size of the mailbox.
• Users must be expert with Outlook to handle this approach.
• You cannot restore and convert damaged, corrupted, inaccessible and oversize OST files.

How to Open Another User OST File using Alternative Wizard?

If you want to open another user OST file then we recommend you to choose BitRecover OST Converter as this software allows to batch convert OST file and also offers to preview OST folders to select for specific folder export.

1. Download and open Alternative Tool.
2. Choose configured Outlook.
3. Select OST folders.
4. Choose the PST file.
5. Browse destination path.
6. Select advanced filters.
7. Press the Next button.

Remarkable Qualities of Alternative Software

• This software also supports converting OST to PDF, EML, MBOX, CSV and 39+ Saving features.
• It offers a simple initiative interface to make it friendly for all types of professional and individual users.
• You can also import OST to Microsoft 365, Thunderbird, Gmail, Yahoo, Zimbra, Maildir and all IMAP supported email servers.
• With this wizard, you can also use filter options such as create PST year wise, date range, subject, to, receive, exclude folder, skip empty folder and many more.
• This software can auto detect OST files and also offer let me select to browse OST files from any default location.

Summary

In this guide, we have explained all effective techniques to open someone else OST file by Outlook native and alternative software. If you have access to Outlook profile then you can opt Outlook native feature. For dismounted OST files we recommend you to choose Alternative software as it can handle unlimited OST files at once and no risk of losing any bit of data.