You can make Excel always open old spreadsheets in Protected View. Enable or disable Protected View using in-built setting, Group Policy, Registry.

File Block in Microsoft Office prevents outdated file types from opening and can cause your file to open in Protected View via Trust Center.

Sending Excel files containing crucial financial and business data has risks. To add a layer of protection, you should learn to password protect an Excel file.

If you have sensitive data you'd like to keep from prying eyes in a Microsoft Excel file, the easiest way to protect it is with Excel's built-in password tools.

There are several options available to you to protect your Excel file with a password. Remember that once you protect the Excel file, you cannot open it without entering the password.

How to enable Protected View in Excel 365 First, launch Microsoft Excel 365 and then select the Options button from the Home screen.

It is possible to create a macro in an Excel sheet that unlock the sheet which is already protected by a password. Users can easily prepare a document in the sheet and then lock it again with a ...

How to Protect and Hide Excel Macros. Creating a macro in Microsoft Excel allows you to program automatic tasks into a spreadsheet or template that can contain multiple commands or functions for ...