I am not trying to offend anyone, just trying to make lives easier.
I have been making a living in electronics
design and cleaning
up design messes since 1963 and have used many make-shift design tools over the years.
Using excel to design electrical
schematics is basically like driving nails with a crow-bar, it can be done but why bother when real schema tools are available for FREE. One I use if it is not going to a PCB design is expresspcb, free out of PCB design company in Portland
Ore, USA area. Digikey also sponsors a free schema application. If I am doing real design where the output will be PCB design I use the Industry Standard design tools topped off by Orcad part of the Cadence design companys offering.
Orcad was one of the first non-hobby uses of the PC, dating back to the 70's and still the most comprehensive offering in the industry.
Orcad is EXPENSIVE for a non-professional user but it has features that make completed design less of a workout.
So before you pickup the crowbar to drive nails, I recommend you see what else is out there! Yes, as in all things worthwhile there is a learning
curve but not near as great as starting out with the wrong tool for the job.