Using File Manager, it's possible to extract compressed files. If you would like to do this with SSH, here's what you need to do:
Step 1 - Preparation
Make sure, that your archive is located in the folder, where you expect it to be. If it needs to be uploaded, you can do so with the File Manager or using FTP.
Step 2 - Connection
lscommand. If you see the needed archive, then you can go to Step 3
If the needed file is in a subdirectory, reach it by running:
where "path/to/files" is changed by an actual path to your file. For example, if your archive is located in public_html/new/version1, then the command should be "cd new/version1".
Step 3 - Extraction
Finally, the extraction. The command will differ based on the archive's format:
tar -xvf archive.tar
tar -zxvf archive.tar.gz
Where instead of "archive" write the name of your archive's file. Extraction takes some time; as soon as it's finished, you will see this from the new line:
and have an opportunity to run the new command:
You can open File Manager to double-check that your archive is already extracted and files waiting for you in a separate folder, named by the archive.