Create relationships between tables and define calculated measures (DAX).
Save the .pbix file and publish to the Power BI Service to share with others. Best Practices for Pro Users Query Overview in Power BI Desktop - Microsoft Learn Pro Power BI Desktop
Pro Power BI Desktop is the premier, free desktop application from Microsoft used by data professionals to connect to, transform, and visualize data. It acts as the development environment where users build sophisticated data models and interactive reports before publishing them to the Power BI Service for sharing. Core Components of Pro Power BI Desktop Pro Power BI Desktop