Yes, you can look at all transactions you have sent (or received) and view file information or the people involved.
MX records every file uploaded either as a list of files, a folder upload or even a compressed file (zip, 7zip or rar).

Either look at the transaction itself, or, search for it in the Activity page. If searching in the Activity page, use the 'SEARCH' field to enter any search term; filename, folder, user, company or the comments were added at the time of sending the data.