Have had fair success d/l'ing largish files on Mac G3 with version 2.8.6, BUT sometimes the file comes down as complete, gets put into library from my d/l folder, BUT it shows as a "LimeWire" file, instead of the dmg or sit I had d/l'ed. Will not open with any decompression apps I have.

What means a LimeWire file? And what do I do with it?