1. Click on Database in the menu

2. Select Monthly Data Backup from the drop down menu

3. Select the month & Click on Go to take backup of the selected month

4. Repeat the same steps for all the months and close the form

5. Click on Database in the menu

6. Select Compact Database from the drop down menu

7. Click on Ok & Check your positions

Note: Remember to take backup of delta.mdb file before compacting database.