Microsoft Excel cannot open or save any more documents because there is not enough available memory or disk space.
- Start a ‘blank workbook’
- Click ‘File’
- Select ‘Options’ in the left menu column
- Select ‘Trust Center’ in the left menu column
- Click the ‘Trust Center Settings’ button
- Select ‘Protected View’ from the left menu
- Un-tick ‘Enable Protected View for Outlook attachments’