Using pen drive with larger capacity

Hi there,

Recently my friend came to me with a problem of a non working pen drive, it seem to be non formatted or Raw Disk...

To my knowledge, there is only pendrives of capacity 2, 4, 8, and 16 GBs, but the one my frend brought to me is of capacity 128 GB.

I tried a lot of options of various forms to format this drive... but its shows in the format dialogue box as the Format as exFAT. Can someone help me out with formating or using such a pen drive...