Microsoft Excel lets you embed content from other applications, including PDF files. You can embed a PDF file into a cell of an Excel worksheet and then use Excel's security features to lock the ...

When you’re working on an Excel worksheet with complex formulas, the last thing you want is to accidentally delete a formula or set of data and completely change the output. Fortunately, you can ...

I have had a request to protect some documents that are being uploaded to Dropbox to attempt to automate hiding and locking specific columns of all historical excel documents.

It's often useful to freeze header rows in place in Microsoft Excel to remember what type of data is in various columns as you scroll or search through a lengthy spreadsheet. You can also make sure ...

You've created an important or confidential file in Microsoft Word or Excel, and you want to keep it private or at least secure. Perhaps you want to make sure that only you and certain people can read ...