Connection pooling is a feature in ADO.Net that enables you to improve data access performance in your application. What is connection pooling?

You can store your connection string in the registry, that way you dont have to worry about overwriting your live web.config.<BR><BR>Another way would be to have all your conn strings (dev & live ...

Today’s README file explains how to create connection strings to SQL Server databases using Visual Studio’s built-in tools. To provide an example using real source, I created a simple Winforms ...

Based on your connection string, you are using Excel 2007 or greater. But I guess that is apparent too by the .xlsx file extension. Did you verify the FilePath variable is correct?