In order to associate the *.tas file with Toad Automation please follow the steps below
1. Go to the location where the *.tas file is stored
2. Right click on *.tas file and choose 'Properties'
3. In the'General' tab | Opens with : Application Name | Click on 'Change' | Select Toad Data Point | If Toad Data Point is not on this list, click on 'Other Programs' | Choose Toad Data Point and click on 'OK' | Click on 'Apply' and 'OK'