Occasionally, I’ve been sent a file to edit that I wasn’t able to open with the programs that I had. If you’ve ever had this same issue, there’s an extension for Firefox and Internet Explorer that could keep you from pulling out your hair. Open IT Online allows you to open Microsoft Office, Star Office, Open Office, and even Photoshop files in your favorite online services, such as Google Docs. While the compatibility isn’t perfect and you won’t have all the same features, the extension could save some frustration (and money if you can’t afford MS Office).
Website: Open IT Online