Note: If you don't wanna go to each folder to copy the iff files:
Windows 7: just type ".iff" in the search bar and all the files will be listed. You can copy all the files at once with this method

This File Includes the christmas jerseys for the following teams:

Oklahoma City Thunder
Brooklyn Nets
Houston Rockets
Los Angeles Clippers
Miami Heat
New York Knicks
San Antonio Spurs
Chicago Bulls
Los Angeles Lakers
Golden State Warriors

Note: It's not possible to put the numbers in the sleeves, at least not yet!