On PC, these files are often placed in the 282350 folder within the Steam user data directory.
Based on community resources like the NLSC Forum , a .zip file with this naming convention typically serves one of the following functions:
Since official 2K servers for older titles are shut down, players use these files to manually update team lineups and add newer rookies (e.g., 2015-2016 draft picks ). File: NBA.2K15.zip ...
Files are primarily for the PC version (Steam), though some roster search IDs were shared for PS4/Xbox One.
Files like CDN.bin , SYNC.bin , and TMP.bin (which can take up ~6GB ) are often automatically redownloaded by the game but may be missing from a standard .zip mod. On PC, these files are often placed in
If the archive is meant for game recovery or data management, note that:
Files hosted on dedicated forums often have a limit of 150 MB; larger mods use external links. Files like CDN
Content creators use tools like the NBA2K15 Explorer to extract and repackage .iff files for custom jerseys, faces, or court textures.