Open PBIX File
The PBIX file extension belongs to Microsoft Power BI, the enterprise solution for data virtualization.
This Power BI application creates reports and visualizations and saves them to a PBIX file.
Power BI Desktop is a Data Visualization Program for business purposes, which allows you to connect to data sources such as XLSX, CSV and XML files or SQL server, Access and IBM databases.
The program can also connect to online services, such as SharePoint, Salesforce, and Google Analytics.
For Power BI, PBIX files are basically Office XML type files, the same one used to save DOCX, XLSX, and PPTX.
The PBIX format, then, is a repository of other files or a collection of files and folders in a compressed ZIP package.
If you need to manually view the contents, you can rename the PBIX extension to ZIP to create a ZIP archive and then extract the contents of the archive.
The best way to open a PBIX file is with the desktop version of Microsoft Power BI, which is free to use.