Sharing files with other Web workers around the globe sometimes makes you feel like you're staring at a can of tasty food but can't find a can opener. Just when you think you're fully equipped, along comes a file extension you've never heard of. Don't worry: no need to Google anymore. Check out OpenWith.org. You'll find a free program for just about everything you would ever need to open, including source code, data files, disc images, spreadsheets and video files. Screenshot All formats are categorized by existing file extensions and the corresponding name right next to it. A click on the name opens a page showing free programs that can open the extension. OpenWith is a comprehensive and useful resource. Give it a try, and crack open your can.