Open external link in the appropriate app instead of UR?

[MrAnalogy]

I have links to files (like Program.mak, or folder).

If I click on them they open within UR rather than the app. I want them to open in the appropriate appliation (or Win Explorer for a folder).

I've tried right-clicking, hoping for an "open with" or "open in application" but no luck.

Any way to do that? (Ideally without having to change all the links. There are hundreds of these in an imported Treepad database.