gearbox calculations

ken and group,
while surfing the net, i've come across the two attached sheets (one for excel, one for word).
the word document shows a list of gearboxes and their gears used in t3's.
the excel document is a calculator. different gear sizes, tyre sizes and km/h can be entered to find out at which revolution the engine runs in different circumstances. it maybe helpful for people
-> who don't have a rev-meter
-> people who want to know how a different tyre size or different gear setting would work
i've only collected them and then translated them in hope they may be useful.
les, if you think they are of use, you might want to add them to the archives of the newsgroup.
thank you and regards to all from germany