What is .CLG file extension?
Catalog file used by Windows System Image Manager (Windows SIM); contains information describing the contents of a .WIM image, including the state of all packages and components; used to display WIM file contents without having to read an entire image file.
CLG files are commonly found on Windows installation discs. For example, the files HOMEBASIC.clg, HOMEPREMIUM.clg, PROFESSIONAL, STARTER.clg, and ULTIMATE.clg are located in the sources directory on Windows 7 installation discs.
NOTE: While WIM files can be several gigabytes in size, CLG files may be less than one megabyte in size.
You can see a list of software programs here on www.easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.