[KillCity]

Hello everyone, I finally found my old gamemode that I thought lost after formatting my pc, but had always been there. I realized though that the file format with the MTA has been lost and there is no way to restore it (Unfortunately I've seen this personally), so I was wondering if there is a way to open or to convert the file pwn or the file amx to get the file map, I saw that my friend is successful with some of his GM but I can not do that you could give me a hand?
PS: I already tried this converter: http://gtamap.delux-host.com/converter/
This provides me with many lines of script that I do not know where to put it to work for in the MTA.

Thanks in advance for your help ^_^