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.
A file with the TGZ file extension is a GZIP Compressed Tar Archive file. Other types of files may also use the TGZ file extension.. WinRAR can open TGZ file. Here's the download link WinRAR download and support: Download. With android jelly bean use ES Explorer: