Convert Excel to PHP & mySQL

I have a complex excel woorkbook with 4 pages of formulas, macros and cells for user input, and 28 pages of data to draw from. I want to put it on my website as a SECURE user interactive form where the user would fill in info and it will create a exercise program for them.

So far the feedback I've gotten is that I should have it converted to PHP & mySQL.

Is this the best way? Is it the only way?

They say it will take 100 - 200 hours of programming and that is way out of my budget.

Any ideas are appreciated. Thank you

Do you think this program would work - PHP Magic - ck it out:

http://www.websitedatabases.com/phpmagic-overview.html