Learn how to fix Microsoft Excel not opening Windows 11 with Safe Mode, Office Repair, add-in checks, file permissions, and Excel file repair.

When I opened the Excel file I inherited from my predecessor, the cells were filled with bright red #REF! and #VALUE!

Give yourself a cleaner start to next week by fixing five Excel frustrations you've probably learned to accept.

After updating to iPadOS 26, I noticed that Microsoft Excel suddenly stopped working the way it used to. At first, it would freeze when opening certain files. Then, it began crashing without warning.