Excel2000

I am working on my intranet reporting web site, by use of IIS5 + Office2000
+SQL2000.
Currently, the first step, I show user an ASP web-interface to collect user
input, keyword etc.,use "<Form name=xxxx Action=MyAction.ASP
method=post>........</Form>"
then these user input values will be submit to action page to run reports
for user.
My problem is, sometimes user needs to input lots of different set of
keyword, which are prepared in his own execel2000 worksheet. Can I use an
Excel2000 file instead of asp page to collect user input and send to the
action page MyAction.asp?
Sine excel2000 can support copy/paste on more cells/columns, better that web
<Form....> control.
I am thinking anther way is: How can I bound a Grid control( like data-grid
in VB6) in asp page, then user can copy and paste data to it with more than
one columns and rows?