actually figured out why I had so much problems with exported files:
The exported files use comma for decimals, while blender and 3ds max use periods.
Can't believe that such a small thing was such a pain.
But makes me wonder why is it not adjustable in either of the modeling programs
and there is another thing: 3ds and blender when export put double-space after each command before the actual values: "v 0.0216985169....."; in order for it to work in the importer/exporter you have to have only one space.