How to work with ZIP archives in the Files application on iOS 13
Apple is making every effort to turn the Files application into a full-fledged file manager, and by and large it does it. For example, in iOS 13 it learned how to work normally with archives – it’s true, only of the ZIP standard: neither 7z, nor RAR, nor even TAR archives can work with files, so the value of this “new” function is a little dubious.
But with ZIP everything is perfect: in order to unzip the archive, just click on it and enter the password if necessary:
Packing files is also easy: press long or hard on the desired file or folder, and then in the pop-up menu, select "Compress":
If you want to add several files to the archive at once, then click on the “Select” button at the top right, then select the files you need, click on the three dots in the circle below and select “Compress”:
Alas, it is impossible to choose the compression ratio and the archive name, but in general, even such basic functionality is quite enough for work.