How to Turn Off AutoCorrect in Excel

1. Open the Excel file in which you want to disable AutoCorrect. Access the AutoCorrect Options dialog. In Excel 2007 or later, click the 'Office' button in the top left, then 'Excel Options,' then 'Proofing' and then 'AutoCorrect Options.' In earlier versions of Excel, click the 'Tools' menu, then 'AutoCorrect Options.'
2. Uncheck the box next to whatever AutoCorrect features you want to disable. To disable AutoCorrect entirely, uncheck every box.
3. Click 'OK' to finalize the changes and disable AutoCorrect.