Problems with opening the .kfs file
 

I try to get into the data file so I can mod the stats of some units, to have some fun, but wherever I open it the file does not read the text right.

I'm pretty sure I was having the same problem years ago and than I don't know what happened and how I fixed it to mod my stuff, but I know I was modding units in KB. I even tried Universal File Viewer or programs alike, but, I believe the part where the Creatures' stats are written comes out as gibberish all the time.

Notepad shows only the gibberish stuff.

I am attaching a file to show what I mean.

Please let me know what I am doing wrong here, thanks.

https://i.imgur.com/g6ujVNQ.png

I use WinRAR to open .kfs files.