Here is a tutorial to lock or hide only the formula cells in an Excel workbook. You can also lock formulas in all worksheets in a workbook.

If you have Excel spreadsheets with sensitive data, you can easily lock and unlock them Here's what you need to do.

To fix the Unknown error trying to lock file in Teams, Excel, OneDrive, PowerPoint, SharePoint, etc, Office apps use these proven solutions.

In Word, Excel, or PowerPoint for Windows, open the file you want to protect with a password, then select File and Info. You should see a Protect option at the top of the next list: Click this ...

Learn how to filter data using wild cards and other complex criteria using Advanced Filter in Excel.

Learn how to easily set up your own search field in Excel to find and filter content within a table.