Several data sources can be connected to Power BI, which is grouped into three main types:
Files
It can import data from Excel (.xlsx, .xlxm), Power BI Desktop files (.pbix) and Comma-Separated Values (.csv).
Content Packs
These are a collection of related documents or files stored as a group. There are two types of content packs in Power BI:
Content packs from services providers like Google Analytics, Marketo, or Salesforce and Content packs are created and shared by other users in your organization.
Connectors
Connectors help you connect your databases and datasets with apps, services, and data in the cloud.