I'm currently working on a ASP.NET solution to collect performance review
data (mostly free text fields) for a client who want to replace a solution
developed in Excel. Currently users fill in a locked down exel workbook with
the data and keep their own copy etc.

What I'd like to do is offer a facility to upload their spreadsheets into
the new ASP application and it automatically extract the data in the DB when
they migrate to the new solution.

Could someone point me in the right direction on how to acheive this with
VS2008/ASP.NET 3.5. The spreadsheets are Office 2003.

Thanks In Advance.