May 17, 2024

Methods to Import Exchange OST to Outlook Offline PST Files

When Microsoft Outlook is synchronizing with the Exchange server but is not online, all exchange OST to Outlook offline PST files is saved locally in a file with the extension.ost.

Reasons to Import Exchange OST Files to Outlook Offline PST Files

When exchange OST to Outlook offline PST files connection is reopened, the changes made by the user while offline are likewise updated in the server mailbox. Because the OST file is saved on the user’s PC, it is unaffected by Exchange Server crashes, mailbox deletions, and so on. In such cases users install BLR Tools OST to PST converter tool Exchange administrators can use OST files to save user mailbox data.

  1. The abrupt removal of an Exchange mailbox from the server.
  2. A few crucial Exchange mailboxes must be backed up.
  3. Despite the fact that there is some unsaved data in the OST file.
  4. The Exchange user wishes to rebuild the file.
  5. EDB files are not available due to defective Exchange, server crashes, and other difficulties.
  6. When users require their emails immediately.
There are several methods for converting an OST file to a PST file.

Method 1: Mailbox Export to PST File Format

Use OST to Outlook offline PST files to access Microsoft Outlook, which was used to create OST files.
Additionally, follow this simple technique to convert the OST mailbox folder to PST:
  1. Open Files in Outlook, then select Open & Export, then Import & Export.
  2. Click “Export to a file” followed by “Next.”
  3. After selecting Outlook Data File (.pst), click on the Next. 
  4. Select the relevant export folder and click Next.
  5. Click Browse, then select where you want to save the new PST file, then click on the Finish.
  6. It is not necessary to enter a password for the PST file.

Method 2: Use “Archiving” to save an OST file as a PST.

Emails from exchange OST to Outlook offline PST files are kept separately in PST format after archiving is enabled. It also helps maintain mailbox size and keeps it at the optimal level by archiving prior mailbox contents in the archive folder.

Follow these steps to build a mailbox archive and save it where you want it:

  1. Launch Microsoft Outlook by opening it.
  2. After selecting Advanced, ensure to locate the button for Auto Archive Settings and click it.
  3. Choose the period during which auto-archiving will operate.
  4. Choose the folder containing the archived file, select an archiving option, and click OK.
  5. Your archiving settings will be followed when saving your OST mailbox items into PST as a result of these steps.
  6. Move Outlook Data Files (.ost) from Exchange Offline to PST without the need for server connectivity or an Exchange profile

With the help of the capable and knowledgeable Convert OST File to PST Tool, you may convert an endless number of OST mailbox folders to PST files. Apart from converting OST files to PST, the application facilitates the export of OST files to various other formats like PDF, Office 365, MSG, EML, and MBOX. In addition to managing emails, this application supports the migration of OST mailboxes encompassing calendars, contacts, notes, journals, and other pertinent data. Use the BLR Tools for OST to PST converter tool and check out the user interface and functioning of the tool.


Here are the options for importing Exchange OST to Outlook offline PST files. Choose the one that best matches your needs and preferences.

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