You can use an Environment variable and build the path with some Concatenation.
Here is an example:

Dim myUsername As String, desktopPath As String
    
myUsername = Environ("UserName")
desktopPath = "C:\Users\" & myUsername & "\Desktop\"

Thanks, ithey will be exporting alot of these, how can I get it to as them for a file name before exporting?

The desktop is probably not a good long-term storage location, especially if you have lots of files as you said.  If the desktop is all filled up, additional icons won't show.  And it's difficult to pick locations for them because you may not know the folder structures of all their PCs.  So I suggest you let your users pick their own location -- with a "folder picker," which has a video on this site.