but it says,"If Windows is unable to open file extension .11 you may have registry related errors or may not have the appropriate program installed" what program it relates and registry i have corrected by ccleaner ..... just name program....
it's (probably) part of a WinRAR file sequence (you need the other 0..10 files).
What we are trying to tell you (and obviously failing) is that asking questions about known pirate software on a Public support forum isn't the smartest thing to do.
"The 11 file extension is associated with Salt Lake Winter Olympics 2002 game audio files."
Maybe the file you downloaded isn't what it claims to be! Forum rules specify no discussion on Warez and other such downloads, but in dealing with the file type 11 issue, I think the file isn't what you think it is or it has been renamed to get thru firewalls with an unrecognized file extension.
However, game file like the Salt Lake City Game mentioned above used .11 as a game file but they are typically really a .RAR or .ZIP file. You might try those programs to see what happens.