Because data can be exported in Parquet format from most cloud storage services using Fabric data factory connectors, Parquet gives you a way to optimize data exports for use in Fabric’s data lake.

Source: https://www.infoworld.com/article/3704608/understanding-onelake-and-lakehouses-in-microsoft-fabric.html

To use Fabric, you can either upload individual files or folders, as with Google Drive or Dropbox, but you can also add links, or even compose a simple text note directly in Fabric’s interface.

Source: https://techcrunch.com/2023/11/07/fabric-introduces-an-ai-powered-workspace-and-home-for-all-your-information/