A: 4K â also known as UHD (more on this in the next answer!) â is a picture technology that quadruples the number of pixels found in a full HD picture. These pixels are usually arranged in a 3,840 x 2,160 configuration, compared with the 1920x1080 you get in a full HD TV.
Files with the .7z extension are very similar to Zip files. These files are compressed archive files, usually created by the 7-Zip file archive utility. 7Z files can make it easier to send files and folders over email and the Web.
What is a VGZ file? Every day thousands of users submit information to us about which programs they use to open specific types of files. While we do not yet have a description of the VGZ file format and what it is normally used for, we do know which programs are known to open these files. See the list of programs recommended by our users below. We are constantly working on adding more file type descriptions to the site - the current count exceeds thousand by far, and more information about VGZ files will hopefully be added soon.