Thank you all for your encouragement and support. I'll try to complete the file as soon as possible.
Horst : as I said alredy, I'm a partisan of the free information - please post the file in your dom3wiki if useful (but you'll then be forced to check my site for the next versions!).
PDF : it was not "my" Pretender Calculator. Someone sent me the file but it was then only a draft IIRC, and never sent an official version. And unfortunately I deleted the first mail so I lost his address (and his name was not included in the file). I'm not able to oupdate this file, I'm not an Excel specialist... but Horst will probably do it
Cheers