Hi,

I am a Japanese. It becomes a strange sentence, but please permit it.

I found the freeware that the data conversion was possible.

'RapidForm XOM'
Rapidform XOM
This software is only a Japanese version.

The format is 'Iges' 'Step' 'Parasolid' 'Acis'.
'開く'　is open　file.
'出力'　is export file.

Please try it.