To get started, you simply need to add the C1Olap Web Part to your page, then choose a data source.
Please note that until you select one or more data fields in the C1Olap Data Panel, nothing will be displayed in the Grid or Chart windows.
Now you need to choose the data you would like to display in your grid, and configure the data as you wish. For an overview of how to do so, see Tour of C1OLAP.