Hey, this might help you too ...

LimeWire only shares files with known file extensions or file extensions you specify. By default, it shares files with the following extensions:

html htm xml txt pdf ps rtf doc tex mp3 wav au aif aiff ra ram mpg mpeg asf qt mov avi mpe swf dcr gif jpg jpeg jpe png tif tiff exe zip gz gzip hqx tar tgz z rmj lqt rar ace sit smi img ogg rm bin dmg


Check the file extensions on the docs you are trying to share.