Sorry m8 U do not day what the file extension is. (Unless im blind or stupid or both)
If ure not sure how to find extension :-
1) Goto the folder with the files are.
2) Click on Tools --> Folder Options.
3) Click on View Tab
4) Go down list until u find 'Hide Extension for Known File Types" and make sure it is not ticked.
5) The format will be filename.???. It is the characters after the "."
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