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.
This step by step guide will show you how to convert a 7z file to a zip file using Bitser freeware. A 7-zip file has a .7z extension and is a compressed archive of files similar to a zip file. To open and convert 7zip files you must use specific software designed to extract them.