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.

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

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 ...

If a user inadvertently changes the formulas in your Excel workbooks, all your hard work could go out the window. This ebook explains how to protect and hide those formulas so they remain safe and ...

If you get The file is corrupt and cannot be opened error while opening a Word, Excel or PowerPoint file, you need to disable Protected View, and unblock the file ...

Microsoft designed Excel with an optional feature that prompts users to view a workbook in a read-only mode and save edits under a different file name. Many business owners and administrators ...