It does not offer the ability to format a drive larger than 32GB to FAT32, the only available choices are NTFS or exFAT.
Set the Partition label, File system (NTFS/FAT32/EXT2/EXT3/EXT4), and Cluster size, then click 'OK'.Right-click the external drive or USB you intend to format and choose 'Format'.
Follow the details below to convert WD My Passport to format WD Passport for Mac.