I'm setting up a backup system on an external drive. 

I would have gone with ext4, but heard that XFS is more suited for my needs. I haven't worked with files of this magnitude before so my question is:

*Which Linux-based file system is best for handling a ~75GB tar file? And are there other file systems I should consider?*

Notes: I already know which tools I will use, namely rsync for the /home partition, and tar for the OS partition. Plenty other posts talk about backup methods, but I can't find any that address very large files. The backup will be run bi-weekly through a shell script.

Thanks!