How do I find out what type of hard drives I have?

I formatted my internal and external hard drive by mistake.

From what I've read, I need to know what type of hard drives they are in order to recover the files. When I click on Properties for the external hard drive, it says 'ext3'. But when I click on Properties for the internal hard drive, it doesn't say what type. So how do I find out?

Who says you need to know

Who says you need to know what filesystem was on the drive?

You probably won't be able to recover the filesystem as it was, but by using file-carving, you can recover a lot of the data.

device manager in my

device manager in my computer properties tells u