I have an Excel spreadsheet that deals with PHs relatively easily
now that the bugs have been worked out. It is quite large but I have
no doubt someone can refine the programing! if anyone is interested
please email me at home.
Also included in this spreadsheet is a VBA sub routine that allows
times to be inserted without any punctuation though the figures on
the sheet appear with colons in place, this speeds up data entry
quite considderably.
Keith Strudwick
Napier NZ