If you've spent any time working with Microsoft Fabric, you know that navigating to the web portal every time you need to inspect, upload, or tweak a file gets old fast. OneLake File Explorer is Microsoft's answer to that friction — a lightweight Windows application that mounts your entire Fabric data estate directly in Windows File Explorer, the same way OneDrive handles your documents. One..what? OneLake is the unified data lake underpinning every Microsoft Fabric tenant. Unlike traditional architectures where teams maintain separate data lakes per domain or business unit, every Fabric tenant gets exactly one OneLake — one place where Lakehouses, Warehouses, KQL databases, and other Fabric items store their data. There's no need to copy data between engines; Spark, SQL, and Power BI all read from the same underlying storage. The organizational hierarchy is straightforward: Tenant → Workspaces → Items (Lakehouses, Warehouses, etc.) → Files/Tables . This maps neat...