To update an Excel Datasource, follow the steps below.

STEP ONE: Access the Administration Centre 

Click on the Administration button

STEP TWO: Open the Connectors and Data sources tab


Under Data select Connectors and Datasources

STEP THREE: Click the pencil icon next to the Connector Name 

Click on the pencil icon beside the Connectors name

STEP FOUR: Click Change below the Data file 

On the pop modal click Change

STEP FIVE: Select the new instance of the Data file and click UPDATE 

Click UPDATE after you change the Data file