A bit of a "After the Horse" type of suggestion here - but in future if you need protected data then the BEST way to do this is NOT to use EXCEL passwording but to convert the whole kybosh into a DATABASE application (ACCESS/ MySQL etc etc).
That way you can restrict information based on USER access rights rather than passwords which in a large organisation where people leave, switch assignments etc etc cause more problems than they ostensibly solve.
It's really SIMPLE to convert / import / export stuff from EXCEL / to EXCEL into / from ACCESS databases and MySQL (Free) is also a runner here.
Doesn't solve the immediate problem I know but for "Next time".
BTW a possible work around your problem might be to try and open your spreadsheet with OPEN OFFICE (FREE) -- especially if you can do it on a Linux system -- then the password protection will be just DATA to the linux system.
The latest versions of Open Office are reasonably compatable with EXCEL -- even where macros are used. http://www.office-3.org/default/inde...eid=1028533860