I don’t have the card with me at this time, so can’t check. My friend has it and knows even less than I do about these things. However, I don’t recall selecting any special options when I filled it on my PC, so I guess it would be in the default format, whatever that might be.
It is probably in the new EXFAT format, which they generally use for SD cards of 32GB or above.
Usually they come from the factory FAT