|I have heard of ntfs to fat with I think easeus partition manager. Never heard of a exfat to anything by a stand alone app.|
I'd suggest that you make a smaller or few smaller fat partitions. No MS app would make it as big as it could. May want to try a linux formating for fat32. This assumes the device would read larger fat32 partitions.
What may be best is to use Windows 7 to shrink a partition then move data and if you have to do it a few times.
"The era of big government is over," said Clinton 1996