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Encrypting a workbook helps to protect workbooks that include sensitive information. This knowledge article demonstrates how to encrypt a Microsoft Excel 2016 workbook.
Step 1
Access the protection settings in Microsoft Excel 2016 by opening the file and selecting the File tab.
Step 2
Select Info from the File menu.
Step 3
Select the small arrow within the Protect Workbook icon, then select the option to Encrypt with Password.