There's a link on each film weboage for the "Technical data sheet". For example, this is the Fomapan 100 page, which has a link to the datasheet:
https://www.foma.cz/en/catalogue-fomapan-100-classic-detail-406
Thanks I was about to write back that I had found it. The problem was that there are 4 categories under each film such as Parameters, Product Query etc. 3 of them are in English but the fourth which is the datasheet link is in Czech only but I clicked on it just in case what it took me to was in English and found it was the datasheet in English. Pity that the webmaster at Foma hasn't spotted that everything needed in English is there except the translation of what must be the Czech for Datasheet
The times for Kodak Excel and Fomadon Excel for Foma 400 are exactly the same which proves that the two developers are interchangeable which is great What is missing is that neither Foma nor Kodak provide times for each other's films.
It quotes 7 minutes which I initially thought made the times very short but in fact this is for stock solution and when I checked the MDC it was also 7 minutes stock and 9.5 for 1+1.
Interestingly the time for HP5+ in ID11 is only 30 secs more than the time for Xtol so about 7% longer and in Tmax 3200 the Xtol time is only 30 secs shorter than ID11 as well so the differences between Xtol and another type of developer altogether looks fairly marginal.
So for all practical purposes it is not a question of shortening the development time for Xtol and Foma films but simply a matter of using the developer maker's time for Xtol
pentaxuser