This sample shows you how to use an Excel (.XLS) file as a data
source for an ASP.NET web page. While you need to be careful when
using Excel with multiple users, there are times when using Excel as
a data source can actually come in quite handy.
If you'd like more info about using Excel with ASP.NET, here are some articles from Microsoft's Knowledge
Base. The first two deal with actual Excel files. The third is for displaying data from other sources in
an Excel friendly format (similar to our Excel as a Client-Side Data Viewer sample in
classic ASP or ASP.NET).