Re: Recommendations on SPC Software or SPC excel add-in(s)
f you are a Tier 1 supplier, you will find that your customer will prefer (sometimes insist on ) you using Minitab. It is very good, very powerful, but (to go beyond the basics) somewhat difficult to use. It is also a little expensive, but not excessively so.
If you are looking for something primarily for INTERNAL use, then I strongly endorse Excel - everyone uses it, you can create your own format of document, and with the functions available, can (fairly easily) perform most statistical operations. There are a variety of downloadable Excel addons that you can also use that would be very helpful.