We can create a report from an imported Microsoft Excel document by using the link: Create a report from an imported Microsoft Excel document
But we need to activate the plugin to use this feature.
If we wanted to use the "external import in reporting" we need to activate the "performance analytics premium" plugin.
- Navigate to System Definitions > Plugins.
- Search for plugins with a performance analytics premium in the name.
- Find the Performance Analytics premium plugin that matches your entitlement and click Install.
The Activate Plugin dialog opens.
- In the Activate Plugin dialog, click Activate.
Please refer link for more information: Get licensed Performance Analytics