Have you tried making your saved folder your shared folder? By that I mean make the location (within LW's tools > options > saving and tools > options > sharing) the same for both saved & shared files. What you can do in that case is download a file & then go to LW's library > Saved Files > right click on the file you've just downloaded > stop sharing file.
Then open your saved folder & scan the file for viruses, check that it sounds ok & that you're happy to share it. Once you've done that, you can go back to the file within LW's library > right click > share file.
IDK if it's going to be any more painless for you to do it this way