Dual Pane Document Previewer?

[MMFrLife]

Does anyone know of a file viewing program and/or explorer alternative that allows dual pane viewing?

I want to be able to preview a document file from one location in one pane and
another document file from another location in another pane so I can "visually"
compare the files.

I've seen this in image programs, but I can't recall seeing it for other files.

Thanks

[MMFrLife]

Thanks.
Funny, I actually tried that one a few years back. I don't remember what it was, but for some reason it didn't work out.

Anyway, this time it appears to be pretty close to what I want. I had to undo a bunch of settings to get it to just show the files
and not compare things like content, size, etc ("visual" comparison only).

However, it would be nice if you could arrow through to the next comparson in each respective folder by first selecting multiple file pairs to compare.
You could arrow through selected pairs based on the order you selected them.