Is it possible to fix .chk files

I had a Micro SC card on my phone, now it says its damaged i plugged it on my pc with the adapter. Now all my files have .CHK next to them. is there a way to fix this problem or is info completely lost? i really need help on this.
THANKS IN ADVANCE
Answer #1
Have a look here it might help
http://filext.com/file-extension/CHK
Link(s) coded. ~ figjam
Answer #2
Answer #3
http://www.softpedia.com/get/System/File-Management/UnCHK.shtml