A .tar.gz files can be considered as an archive file which contains one or more than one compressed files. Archive files are collection of one or more than one compressed files that can be easily transferred between people and the computer system. If you use compressed file archive you can be sure that the recipient will receive all the files and no file will be lost in the transfer process. They help to reduce the network traffic. They have same working as the .zip files. Most of the file compression applications which you are using till now work well with Windows 7 which is the new version of the Windows released by Microsoft.
7-zip software is free open source compression software. You don’t have to pay a single penny in downloading it. It is capable of working with several types of compression algorithms which also includes those which is used to make .tar.gz files. First install 7-zip software on your computer and after installing right click on the .tar.gz file and choose the any one of the 7-zip’s extraction option. This step will help in extraction of the .tar file. After this is over right click on the .tar file option to extract its contents. Once “.tar files” extraction is complete you can get access to all the files that were compressed inside the .tar.gz archive.
You can even use WinZip and WinRaR option to decompress .tar.gz files but the problem with them is they are shareware and they have to be purchased again once the trial period expires. WinZip will ask you if you want to extract the .tar file to the temporary folder and then it will extract its contents. On the other side WinRaR will directly extract the contents of the .tar.gz file without using any of the additional prompts.