Which is why I brought this up in the first place, and was the subject of the Thread to which I referred!

I think Excel is a great tool - I use it for everything from my accounts & taxes to decoding SS7, DDCMP, and other protocol frames, Keil mapfiles, and event trace files.

I have an automatic timesheet that uses VBA and has a button to raise an invoice at the end of the month (or whatever).

Only today I was using Excel to analyse som 'C' data structures.

I have tried Ami-Pro and Quattro in the past, and they had similar facilities - but I don't know what (if any) comparable spreadsheet products are available on the market today.

I'm sure MathCAD has the edge when you get into really serious engineering calculations, but I very seldom need that.