Okay, I made the Trust Center changes in the document on computer 1 (duh). I created a folder on computer 2 (and temporarily on comp 1 so I could choose it), then added that path as a trusted source (including subfolders!). Then I saved it on comp 1. Fortunately, Excel isn't smart enough to know or care what computer that path is on. So, when the file gets over to comp 2, in a subfolder of the "trusted path", it opens normally, in trusted mode. If anyone sees any potential pitfalls with this, or has a better way, please post. Thanks a lot.