Hi, I want to share
“How to install package .deb in Archlinux”
Ok, first you must install package dpkg from AUR Archlinux ( How to install Yourt in Archlinux ):
link : https://aur.archlinux.org/packages/dpkg/
type this command in terminal.
$ yaourt -S dpkg

Following step by step.
Finish installation, try to install package .deb in Archlinux.
In my case, I will try to install winbox4lin.deb.
Try this command on yout terminal. ( just sample ).
$ sudo dpkg -i Downloads/winbox4lin.deb

You can see error processing the package.? yap, invalid group ‘whendy:whendy’. fixed it.
$ ls -ln Downloads/winbox4lin.deb
if not working try this.
example error : chown: invalid group: ‘koplak:koplak’
1. add group koplak :
$ sudo groupadd koplak
2. add user to group
$ sudo gpasswd -a koplak koplak
And then try again install package .deb.

Touche. Great arguments. Keep up the good work.