Extracting contacts from an OST (Offline Storage Table) file can be a detailed process that involves using specialized software or manual techniques. Here is a step-by-step guide to help you through the process:

Step 1: Install OST to PST Conversion Software

There are several tools available to convert OST files to PST (Personal Storage Table) files, which can then be opened with Microsoft Outlook. Some popular options include:

Kernel for OST to PST

SysTools OST Recovery

Download and install one of these tools on your computer.

Step 2: Convert OST to PST

Launch the Conversion Tool: Open the OST to PST conversion software you installed.

Add the OST File: Use the interface to browse and select the OST file from which you want to extract contacts.

Convert the File: Follow the prompts to convert the OST file to a PST file. This process will vary slightly depending on the software you are using.

Step 3: Open PST File in Outlook

Open Microsoft Outlook: Launch Outlook on your computer.

Import the PST File:

Go to File > Open & Export > Import/Export.

Choose Import from another program or file and click Next.

Select Outlook Data File (.pst) and click Next.

Browse and select the PST file you converted and click Next.

Choose the option to import into your current mailbox and click Finish.

Step 4: Extract Contacts

Navigate to Contacts: In Outlook, go to the Contacts or People section to view your imported contacts.

Export Contacts:

Go to File > Open & Export > Import/Export.

Choose Export to a file and click Next.

Select Comma Separated Values (CSV) and click Next.

Select the Contacts folder from your PST file and click Next.

Choose a location to save the CSV file and click Finish.

Step 5: Review and Use Extracted Contacts

Open CSV File: Open the CSV file with a spreadsheet program like Microsoft Excel or Google Sheets.

Review Contacts: Verify that all the necessary contact information has been extracted correctly.

Utilize Contacts: You can now use this CSV file to import contacts into other email clients, CRM systems, or for backup purposes.

Manual Extraction (If You Don't Want to Use Software)

If you prefer not to use third-party software, you can manually extract contacts if you have access to the OST file in Outlook:

Configure Outlook to Use OST File:

This requires having access to the email account that originally created the OST file.

Ensure Outlook is in offline mode to use the OST file without server access.

Export Contacts:

Follow the steps above to export contacts to a CSV file.

Important Notes

Backup: Always create a backup of your OST file before starting the conversion process.

Licensing: Some conversion tools might require a license for full functionality, so check for free trials or purchase options.

Data Integrity: Ensure the tool you choose maintains data integrity during the conversion process to avoid losing any information.

If you encounter any specific issues or need further guidance, feel free to ask!