When you are uploading an Excel file to Moodle, you may encounter an error message stating "Error Connecting to Server". To fix this issue, please follow the steps below.

1. Open the file in Microsoft Excel

2. Click File

3. Click Info

4. Click Check for Issues

5. Select Inspect Document

6. Click Inspect

7. Click Remove All

8. Click Reinspect

9. Click Inspect

10. Click Close

11. Click Save