Formula's disappear after emailing

[electrohead]

I can't figure out what the cause of this is but I'll provide the details cause I'm stumped. I have an xlsx document with multiple sheets all containing formulas and no matter what format I save it as the person I'm sending it to receives it but all fictions are lost. I use office 2010 he uses 2007 not sure if there's some sort of compatibility issue or what.

Thanks for your help

[tlafferty]

The first thing I'd check is if any of your formulas refer to other workbooks. If so, the user may not have access to those file locations. If he/she has disabled update of external data, then all external data will be static.