Trainz

I have found several items that use to have a config.txt - have become a config.chump. How does one correct this problem. (if possible)
Rename does not work.

this is what happens to a config.txt file when it becomes a .chump file

partial Config.chump

ACS$
p  kuid
M7 ) username Tram-citadis-Paris_M  kind traincar  category-class LS  mass
`m
engine

 interior
M7 ØÖ  enginespec
M7 8Ç  enginesound
M7 Ï 
hornsound
M7 ðÒ  fonts
 light_color  C C C
nightmode lamp  light

 script tramcommande  class TRAMCOMMANDE ! disable-extra-track-sounds

= description Elément de conduite rame citadis ligne T3 RATP  author Bubu45 
organisation ' & contact-email j-r.bruin@laposte.net & contact-website trainzfrisson78.com  category-region FR 
category-era 2000s;2010s 
Partial config