Hello motofans!

Can someone tell me, how to, without any additional applications, upload and install new themes to my moto Z8? It's about themes on my PC, not from www.

Heh, I solved my problem myself (hurray for me ;] ).
To install new theme from PC I had to copy utz file to any directory i.e. on memory card, then run File Manager on the phone, go to this directory, and there you are. Install this file is piece of cake.