- Open Excel.
- Select File, Options.
- Select Trust Center, Trust Center Settings.
- Select Protected view.
- Uncheck all options under Protected View.
- Select OK.
- Restart Excel.
- Attempt to open this Excel document again
If you are using Microsoft Excel 2007 and the Protected View is not an option under File>Export Options>Trust Center>Trust Center Settings, please call Microsoft Support for further assistance at 1-800-642-7676 for further assistance.
If this issue continues, Click Chat with Support and reference this article. .