How to lock cells in Microsoft Excel, so you need a password to change or erase data

You can lock cells in Excel by heading into the program's "Protection" tab. There, you can set a password, and protect your ...

How to filter data in Microsoft Excel to organize and sort your spreadsheet

You can filter data in Excel based on either certain parameters in columns or over the whole sheet, and you can later ...
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How to Make a Field Mandatory in an Excel Spreadsheet

You may want to create mandatory fields in your Excel spreadsheet -- fields that must be filled in before you can save the document. When a field is made mandatory, there is no risk of leaving out ...