I think you mean Access, not Excel, but that is a HORRIBLY inefficient and completely awkward way to "build a CAD" . If you simply want to just track things you enter in a database, try Access. **SPOILER ALERT** it will suck, you will hate it, you will spend WAY too much time on it w/o a reasonable amount of return, but basic tracking of things could be done.
I recall using a CAD once that was built on Filemaker Pro (eesh, 1997...?) and it basically pushed the limits of what could be done WITH INSUFFICIENT RESOURCES. It didn't have mapping, alpha-tagging, radio interaction...so it was literally incident tracking...and it was almost useless at that.
Clicking thru your links, I can see what you think you're trying to do (er, trying to have someone do for you)...good luck.