What it the region/language for sexmagnet ISP. There is no TIR function for
English Excel. Basically, however, if you can't find it in help, there is
no explanation of how it calculates.

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Regards,
Tom Ogilvy

"cimento cola" wrote in message
...
Wonder if anyone can help.
Does anyone know how excel calculates, meaning which formula, th TIR
function?
Thanks in advance.