This can be done through a Constituents query
 
1. Go to Analysis > Information Library
2. Click Add an Ad-hoc query
3. Select query view of Constituent from the dropdown
4. From the far left column select Attachments
5. From the center field drag Filename to Include records where:
6. Set the criteria to Not blank
7. From the center column, drag Filename to the Results fields to display

 
This will provide you with a list of names with attachments, along with the attachment name. From here, you can output any other information about the constituent or attachment such as Date enteredTitle, Type and Author Name