The Open Document Format (ODF) is a zip-compressed, Extensible Markup Language (XML)-based, Open Source file format for saving and exchanging text, spreadsheets, charts, graphics and presentations.

When somebody sends you a document as an attachment, don't just open it. Use the free tool Dangerzone to scrub it clean of any malevolent code. Here's how it works. You probably already know it's ...

A PDF file can stay open far longer than expected when a small change turns into a search for the right tool. Adding a signature, reducing the file size, or fixing a line of text can take more time ...