When you're at your own (Windows) computer, use 7-Zip to extract almost any kind of compressed archive. When you're somewhere you can't use 7-Zip, try WobZip, a neat, helpful online decompression tool. WobZip can take any compressed file upload, up to 100MB in size, and extract its files for individual downloads. It supports 7z, RAR, TAR, g-zip, zip, the RPM and DEB Linux packages, and a handful of even more rare examples. If that's all it did, that would be great. But WobZip also lets you decompress files that are password protected, assuming you know the password, and can open files that are located online. So if you're not quite sure if you'll need all the files in that big driver download, go ahead and patch the URL into WobZip, then just grab the .INF you really want. If you're on pretty much any modern system, WobZip lets you download all your files as a more-compatible .ZIP archive, WobZip is free to use, no sign-up required, and makes a point of stating its "in development" status, so don't be surprised to see an occasional bug.