Right click on the attachment and see if there are an properties that will identify it.
Also, just do a Google search on the full name, including the (dot)pps extension as it may already be on the internet. If so, then you can just post the web link.
Wayne MSGT USMC (Ret) & Earlene (CinCHouse)
2008 Winnebago Destination 39W
It is what it is, and then it is what you make of it.