RDLC reports allow ASP.NET developers to easily represent data to end users. They can be created in Visual Studio using the Report Designer and ReportViewer controls, and allow exporting reports to Excel, PDF and Word formats. The .rdlc file extension contains the report definitions created by Visual Studio. In contrast, .rdl files are used by SQL Server Reporting Services and require a Reporting Services instance. The demo shows how to add a connection string, ReportViewer control, design a sample student report in .rdlc format and display it using the ReportViewer.