I thought that I had replied earlier. Clearly not. You have only one remaining possibility. However, I guarantee that it'll not be possible without Congressional/Presidential approval. There is a free add-in which contains a function called INDIRECT.EXT. Download it and install on ALL PCs that will open the file. I see that you're using Excel 2010. It works fine on that version of Excel. I believe it can be made to work on 2013 as welll.

The add-in is called Morefunc. Google it if you are able to go down this road. If not... then you're up that famous creek without a paddle...