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Export email, Calendars, Contacts and more from OST Files

Outlook stores emails, calendars, contacts, and other mailbox items in an OST (Offline Storage Table) file, enabling uninterrupted access even when you’re offline and automatic sync once reconnected to the Exchange server. Although this offline functionality is helpful, certain situations require converting or exporting the data into a PST (Personal Storage Table) file for better accessibility and management.

Exporting data is commonly needed when migrating to a new system, creating mailbox information through backups, or transferring data between user accounts. Difficulties occur when OST files become inaccessible due to corruption, Exchange server disruptions, or orphaned profiles, which can prevent Outlook from performing a direct export.

Export email, calendars and contacts from OST to PST

This is where EdbMails OST to PST Converter becomes essential. It allows you to extract and export all Outlook data including emails, calendar entries, contacts, tasks, and more, without relying on the original server or Outlook profile. Whether you're dealing with a healthy OST or a damaged one, EdbMails ensures a smooth, secure, and complete export process.

The guide below walks you through each step to help you successfully convert and export your mailbox items, offering a reliable solution for data migration, recovery, or backup.

How to extract calendars and contacts from OST files?
- Method 1: Export calendars and contacts from Outlook
  You can export emails, calendars and contacts from Outlook with the following steps.
  From Outlook 2021, 2019, 2016 and 2013:
  Repeat the steps for exporting and importing contacts and other mail items from the OST file. See how to download Outlook emails to the hard drive.
  - Step 1: Launch Outlook and open the Import/Export Wizard
    Open Outlook and go to the ‘File’ tab
    Click ‘Open & Export’ > ‘Import/Export’
  - Step 2: Select Export to a file and choose Outlook data file
    In the Import and Export Wizard, select ‘Export to a File’
    Select ‘Outlook Data File (.pst)’ and click ‘Next’
  - Step 3: Select the calendars and contacts to export
    Select the ‘Calendar’ from the list of mail items and folders and select the option to include subfolders.
    Click ‘Browse’ and select the location to export the PST file.
    You can also password-protect the output file before continuing with the export.
  - Step 4: Start the export and import the PST file into Outlook
    Finally start the export operation of the calendars from the OST file to PST
    To import the exported items into Outlook, launch Outlook again and go to the Import/Export wizard.
    Select ‘Import from another program or file’ and follow the steps to import all your contacts into Outlook.
  From Outlook 2010 and 2007:
  - Step 1: Go to the Import/Export wizard in Outlook
  - Step 2: Click Export to a file and choose Personal Folder file (.pst)
  - Step 3: Select the Calendars and include the subfolders
  - Step 4: Select the location to save the PST file and start the export
  Limitation: Exporting calendars and contacts directly from Outlook may fail if the OST file is corrupted, orphaned, inaccessible, or if the Exchange server is unavailable. In these situations, you will need to convert the OST file to PST format in order to successfully extract and recover your calendars, contacts, and other mailbox data.
- Method 2: Export calendars and contacts with OST to PST Converter
  EdbMails OST to PST Converter provides an all-in-one solution to export data from OST files to PST files, including emails, contacts, calendars, tasks, notes, journals, and appointments. It ensures that the original folder structure from the OST file is fully preserved in the PST file, keeping your data well-organized. After conversion, you can easily access your emails, contacts, and calendar events in Microsoft Outlook, just as they were in the OST file. Additionally, EdbMails offers advanced filtering options, allowing you to selectively back up specific contacts or calendar entries with ease.
  Step 1: Download and install EdbMails converter tool for OST
  - Download and install the EdbMails application on any Windows-based computer.
  - Open the EdbMails application.
  - Enter your email address and password, then click ‘Login’. If you don’t have an account, click ‘Start Your Free Trial’ to continue using the trial version.
    Note: The Free Trial version lets you explore the software features and export up to 30 items from each and every folder. To unlock full functionality, you need to purchase a valid license from the EdbMails website.
    Click here to purchase the license from the EdbMails website.
    After completing the purchase, close and relaunch the EdbMails application, then login using the same email address and password used during the purchase to activate your license.
  - Select ‘OST Recovery and Migration’.
  - Select export operation as ‘OST to PST’.
  - You can retain the default job name or click the ‘New Job’ button to change the job name.
  - After that, click 'Next' to continue.
  Step 2: Select the OST file containing the emails and mailbox items
  - Click ‘Browse for OST file'.
  - Select the offline OST file from your local drive, then click the ‘Next’ button to continue. You can also share the OST file on a network with read and write permissions assigned.
  - Click ‘Browse’.
  - Choose the destination folder where you want to save the exported PST files, and make sure the drive has sufficient free space to complete the export process.
  - EdbMails scans the offline OST file and recovers mailbox data, even when the file is damaged or corrupted. During the process, the tool analyzes the file structure and contents to extract emails and other mailbox items. The time required depends on the file size and the level of corruption, so wait until the scan completes to ensure full recovery.
  - After the recovery process is completed, the OST file data is displayed in the application interface with its full folder and subfolder hierarchy. You can expand any folder or subfolder to view its contents. When you select a folder—such as Emails, Contacts, Notes, Tasks, or Calendar—the application lists all the items within it and displays a detailed preview of the selected content on the right side of the interface. EdbMails OST to PST Converter allows you to open an OST file without Outlook.
  Step 3: Preview and select the mailbox
  - Select the desired mailboxes or folders, then click the ‘Next’ button to proceed.
  Step 4: Export the mail items from Outlook OST to PST
  - EdbMails OST to PST converter ensures fast and accurate conversion of offline OST files to PST format. Review the selected mailboxes and folders for the export operation, ensure the ‘Action’ is set to ‘Export’, and then click the ‘Start Export’ button to begin the export process.
  - The export process has started, and you can track its progress through the status bar. The interface shows the mailbox and folder being exported, the destination PST file location, and the count of items successfully exported. When the export is complete, EdbMails will display a message confirming that the operation has finished.

Benefits of using EdbMails to Export email, Calendars, Contacts and more from OST Files

Export OST to PST without Exchange: EdbMails provides users to export OST to PST even when the exchange server is unavailable or the Outlook profile is inaccessible. This makes it ideal for orphaned, inaccessible, or offline OST files where Outlook’s native export fails.
Complete Import with all Mailbox Items: EdbMails supports the import OST to PST process by extracting emails, calendars, contacts, tasks, notes, and appointments in one operation. All mailbox data is preserved in an accessible PST file that opens seamlessly in Outlook.
Recover Corrupted OST Files: EdbMails can import OST File data from corrupted or encrypted OST files by scanning and restoring. This ensures critical mailbox items are recovered even when Outlook cannot open the file.
Maintains Folder Structure: During export OST to PST, EdbMails retains the original folder structure, subfolders, timestamps, and item properties. This ensures exported emails, calendars, and contacts remain well-organized and usable.
Preview before Import: Before you import OST to PST, EdbMails provides a built-in preview of emails, contacts, and calendar entries. This helps verify data accuracy and selectively export only required mailbox items.
Selective Export for Option: EdbMails allows users to selectively export OST to PST by choosing specific folders such as calendars or contacts. This reduces file size, saves time, and supports targeted backups or compliance needs.
Safe Read-Only Import: The software performs a read-only import OST File operation, ensuring the original OST file is never altered or damaged. This guarantees data safety during recovery and export.
Backup, Migration, and Compliance: By enabling secure export OST to PST, EdbMails supports mailbox backups, data migration, legal compliance, and long-term archiving, making it more than just a conversion tool.