Hi William,
Outdated application, application error, file damage, and permission related issues are a few of the possible reasons why you are experiencing issues with opening downloaded files. I would like to confirm if the issue is happening to a specific downloaded file. If yes, the file might be damaged. Repair the file by following these steps:
- Click File.
- Choose Open.
- Select the file location.
- Click Browse.
- Select the damaged file.
- Click the arrow next to the Open button.
- Choose Open and Repair.
If you’re getting the same issue, move the file into the same folder and add it to the Trusted Location by following the steps below:
- Click File.
- Choose Options.
- Select Trust Center.
- Click Trust Center Settings.
- Select Trusted Locations.
- Click Add new location.
- Click Browse and choose the folder where the downloaded file was moved.
- Click OK.
- Hit OK.
If you’re getting the same results, update Office. If Office is already up-to-date, repair Office.
Let me know if you need additional assistance.