How do I created MBTiles using the Data Interoperability extension in ArcPro? I can't find good instructions anywhere.
Are these the documents you have consulted?
Get help for the ArcGIS Data Interoperability extension—ArcGIS Pro | Documentation
The extension is designed to import/export from one format to another, so the actual creation is probably not covered explicitly, other suggestions are to consult the FME workbench or QGIS help documents
So I follow some of the Instructions there but when I created a Spatial ETL Tool the Workbench doesn't open.
Working on ArcGIS Pro 2.8.x?
Have you followed the steps in Create an Esri Spatial ETL tool ?
You can start with the creation of an Esri Spatial ETL tool, or create a workflow in FME Workbench (launch from Start button), and refer the FMW file to an ETL toolbox.
*Just checking if ArcGIS Data Interoperability is installed, and license is available.