File Managers other than iTunes

He had mentioned this earlier but I didn’t follow through with it, and this explains its usage step by step.

A helpful addition from a post by @AmberV (<Thank You):

I had recently, successfully tried Apple’s Files App. Works well for what it’s capable of doing. The above method with FileApp adds the ability to use the advantages that .zip brings. Can other Apps do this? Don’t know. I don’t use Dropbox so this improves my workflow quite a bit. Better late than never.

[EDIT to fix broken link.]