Click "File manager" in Your cPanel:
Select and open the folder to archive or unzip:
Highlight (SHIFT&CTRL for some files/folders) a file or a folder for archive.
To highlight files / folders you need first push CTRL and after select the files/folders for your archive with the mouse.
To highlight files / folders located nearby, for example in the middle of the list. You need first file highlighted push SHIFT and last file highlighted.
After you selected of files / folders for the archive click "Compress":
Specify the archive type and click on the "Compress File(s)":
Your archive has been created:
To unzip the archive, select the archive file:
Click "Extract":
By default, unzipping to the current folder. Specify the path to unzip If you need another folder: