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 ...

Locking cells in a Microsoft Excel spreadsheet is a super useful thing to know how to do. It’s used to protect a certain segment or an entire worksheet from being modified by anyone other than the ...

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.