First of all, you cannot install a tar.gz file.
A tar.gz file is what is called a compressed tarball. The .gz part tells you that the file is compressed with gnuzip. You can unzip with the gunzip app. gunzip file.tar.gz
The .tar tells you that the file is a tarball. In other words, a bunch of files that are put together in 1 tape archive (tar) file You need to run the tar command to untar that file. tar -xvf file.tar
From there, you should fine a readme with instructions on how to compiile and install the software . This step is always differrent, so I cannot tell you the next few steps, but there shoud be an INSTALL or a README which will tell you what to do.
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