Hi Mei-Yu,
We recommend that QCTOOL is used for converting among formats: link.
A few other items I’d point out:
- The Annotated Data Dictionary has an entry (‘Genetic’) which includes information on this data.
- There is also the newly released QC info (this also includes platform annotations)
- Here is another thread talking about working with these data.
Hope this helps, looking forward to hearing more about the work you’re doing!