To view the hidden file from cPanel File Manager you have to enable the option which will display all the hidden files in sub directories.
Login to your cPanel & access option File Manager. The time you click on File Manager, it will pop a Directory Selection screen. It will ask you where to land and browse through the Home Directory, Web Root, Public FTP & Document root for any Main, Addon & Sub Domains.
Just below it there is a check box which says ““. You can view the check box as in image below.
You need to check it and click Go. You will now be able to view the hidden files under sub directories.