Just updated my Microsoft Office and now none of the tools will open, they just crash Excel. I am using version 15.24 (160707)
This is the error.
My Excel is version 15.24 (160709) and the tools open without issue. (Mac Pro, El Cap 10.11.5.) Maybe try updating again.
I also have the most recent version and everything is working.
That said, the new version of excel for mac can be a pain in the but. It only works on a single processor!
The delete and re-install seems to have fixed it. Ghost in the machine. Thanks Keith!