|just do a search for file using the *.* and date of dload in date option.|
and look in result for your file type. also size of file else.
but some times, the folder well be deleted after the task is done. here you can pause the task (if is possible) to do your search.
plan B, if you have (or can get) an explorer that can show you the size of folder in the tree view , it can give you an idea on the folder (or the parent) by looking just for its size changing; and you access this folder (or subfolder) and looking for the new file (date of creation) . . .