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

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.

Every time you move a cell, the screen freezes, and just typing a single character causes the mouse cursor to spin for several seconds.Are you facing an Excel file that is too heavy, exceeding its ...