This is IFF CDF Studio for NBA 2K10 and you can get it from ModdingWay Download Zone. This program allows you to edit iff/cdf pairs of files that contains textures. It has been tested with portraits.iff/.cdf logos_large.iff/.cdf, logos_medium.iff/cdf, and logos_small.iff/.cdf. Click on read more for download link, tutorial and screenshots.
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