importing excel spreadsheets into web-based applications
 

How do you automate importing data from an excel spreadsheet into a web-based
applications. For example, a form on the web has fields for name, address,
phone, email, etc. (some of the fields are required, some optional) and you
have a spreadsheet with information for a 100 different people (or even 1
person), how do you fill in all the fields at once without having to cut and
paste each field for each person.