Locking down individual files is great, but a blanket encryption will prevent anyone from getting their paws on your files.
Automate repetitive data entry and fix broken sorting hierarchies using Excel's powerful, hidden Custom Lists tool.
When somebody sends you a document as an attachment, don't just open it. Use the free tool Dangerzone to scrub it clean of ...
A simple README tab can guide users, document data, and make your shared Excel workbooks much easier to use.
The FCC has everyone worked up about foreign-made routers, but the spec you should actually be concerned about is WPA3.