Repair Excel Files After Upgrade
After a recent Microsoft Excel update or a Windows upgrade, an Excel file may fail to open due to several reasons such as corrupted files or issues in the Protected View.
Regardless of what is causing the error, this article will show solutions how to fix excel files after an upgrade.
Repair Excel
Closeย all running MS Office Programs.
Go toย Control Panel and selectย Programs.
Chooseย Programs and Features.
Look for your Microsoft Office and right-click on it.
Selectย Change.

Choose Quick Repair or Online Repair and click Repair.

After the repair is done, check your Excel program and file for the error.
Disable the Hardware Graphic Acceleration
Go toย Fileย and click onย Options.
Go to theย Advanced tabย and scroll down toย Display.

Checkย the box that saysย Disable hardware graphic acceleraton.
Clickย OK.
Change Default Printer
Openย Control Panel and chooseย Printer and Devices.
Right-clickย Microsoft XPS Document Writer and set as default printer.

Reopen your MS Excel to check if the issue has been solved.
Open Excel in Safe Mode
Pressย Windows Key + R.
Type excel.exe /safeย and press OK.

Open the Excel File.
Fix issues with Protected View
Go to theย File tab and selectย Options.
Chooseย Trust Center and click onย Trust Center Settings.

Click onย Protected View tab andย uncheckย all options.
Press OK.

Go toย File Block Settings tab andย uncheckย all options as well.
Press OK.

Re-install Microsoft Office
Go toย Control Panel.
Clickย Programsย and selectย Programs and Features.
Look forย Microsoft Officeย and right-click on it.
Selectย Uninstall.ย Follow any on-screen instrcutions.

Run the MS Office installation procedure again to reinstall MS Office on your PC.