Feral Heart

Guys, me need help. ;w; My FH has stopped working. Alright, so, I was working on a map for my friend and well... my FH crashes. I was like, Okay, I can just redownload it. I tried and tried and tried again, but it didn't help at all. I can't even get to the log in point without it crashes. I thought maybe it had to do something with my meshes. I check there, and i notice something different. You know the .object files? Well now, I can open them in wordpad. Idk if that's the problem or not, or how to change it back to the .object. Here, I got a few pictures if they help. (Please Look at All 3 of them)
http://tinypic.com/view.php?pic=sx2aut&s=6
See, it crashes ;w;
http://tinypic.com/view.php?pic=16gb2q&s=6
They now don't have .object on the end of its name
http://oi45BannedImageSite/2054kmp.jpg
See, now I can open it on wordpad.

Idk is that's my problem, but if anyone knows how to help me, please do! -Sobbing-