ACT.DAT -- Missing on dev_hdd0/home/0000000*/exdata

Hi,
I'm searching for my ACT.DAT file on my PS3 on this location but can't find it.

dev_hdd0/home/0000000*/exdata

Can you help me on this?

I have two(2) folders

dev_hdd0/home/00000001
dev_hdd0/home/00000002

And both don't have the exdata folder.

Thanks in advance.