Follow the below steps to compress Outlook data files without losing any data.
Visit the official website of DRS Softech and download the Compress Outlook Data Files. Install the application and run it as administrator.
Expand the Choose file type field and select the Outlook data file type: PST or OST.
Click on the Next button to proceed further.
Now, you will see two different options in the left pane to add files: Select Files and Select Folder. The Select Files option allows you to add individual files, while the Select Folder option assists you in adding an entire folder.
Click the Select Files option to add the desired Outlook data file.
Locate the Outlook data file you want to compress. Select it and hit the Open button.
Now, you will see the desired file has been added to the application. You can remove any item from the list using the Remove and Remove All buttons.
Click the Next button to proceed to the next step.
You will see the preview of the mailbox items of the selected Outlook data file. Tick the mailbox folders that you want to compress. Hit the Next button.
In the Compression Option Panel, choose from the following options.
- Compress All Attachments in New PST File
- Remove All Attachments from the new PST File
- Remove All Attachments in a new PST File and save them in a Separate Folder
- Remove All Attachments in a new PST File and compress them in a Separate Folder.
After that, enable the Remove Duplicate Mail based on the option and select the parameters: To, From, Subject, Bcc, and Body.
Next, select the Date Filter feature and enter appropriate dates in the Start Date and End Date fields.
If you want to break the resultant PST file into multiple smaller files, tick the Split Resultant PST File option and define the size of the resultant PST files.
Click the Path to Save button and specify the saving location for the resultant file.
At last, click on the Start Compression button to initiate the Outlook data file compression.
The application is compressing the selected Outlook data files. The process will take some time depending upon the size of selected files.
After the process has been completed, you will see the report of the process. Press the Download Report button to download this report.
Also, if you want to compress other Outlook data files, press the Convert Again button.