Hmm... I'm no expert at this, but I think it'd only work in Internet Explorer. So you may want to do a form that looks like Excel and have them use a submit button and it writes a file to the server or database. I'm just throwing in ideas... You might also want to do some password protection so people can't go in there and put a bunch of junk on the site. I don't know about making a .xls (Excell spreadsheet) file, though.