I got this to work:
http://api.viglink.com/api/click?for...or-windows.zip
I had to drag and drop each file in to the BMWConv program one at a time though but the conversion is instant so it didn't take very long.
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2011 335D M-Sport: Nav, Cold Weather, Harmon Kardon L7 Premium. Mods: Full M3 Interior & M3 Rear Spoiler, JBD Tuner, Carbon Fiber Front Lip Splitters, LED Angel Eyes, K&N Filter, LED Interior Lights, Carbon Fiber Door Handle & Key Entry Accents.