Excel Author identification

Hello,

This question was discussed previously. A file was sent to me and I strongly suspect the person who sent me the file is not the person who created it.

I have had a look at the properties of the file and under the tab "Details" I have found the following and somebody might be able to explain what it means:

ORIGIN
Content Created: 01/04/2016
Date last saved: 24/04/2016 14:06

FILE
Date Created: 26/04/2016 14:18
Date modified: 24/06/2016 14:06

I suppose the question here is whether there is any relationship between the ORIGIN (date last saved) and the FILE (date modified).

Or maybe one of you can gather some other information based on the information I give here?

Thank you!

Alicia