Use in Finder¶

Open Finder. Each OneLake account appears as its own entry in the sidebar under Locations, named OneLake — <alias> (one per account, the same pattern as OneDrive and Google Drive). On disk they live under ~/Library/CloudStorage/, picked by macOS — File Provider apps don't get to choose the parent folder:

~/Library/CloudStorage/
├── OneLake — work/
│   └── Sales Analytics/
│       └── BronzeLake.lakehouse/
│           ├── Files/
│           │   └── raw/
│           │       └── 2026-Q2.csv
│           └── Tables/
└── OneLake — client-a/
    └── ...

What just works¶

• Drag-and-drop to upload.
• Double-click to open. Files stream from OneLake on demand and are cached locally, so a second open is instant.
• Save in any app to write back.
• Spotlight indexes file names.
• Quick Look previews CSVs, images, PDFs without downloading.
• Right-click → Always Keep on this Mac for offline access, or Free up space to drop the local copy.

Multiple accounts¶

Each account gets its own top-level entry in Finder's Locations sidebar (OneLake — work, OneLake — client-a, …), backed by its own folder under ~/Library/CloudStorage/. Different tenants live next to each other — you never need to "switch account".

What you can't do from Finder¶

Some things are managed through the Microsoft Fabric portal and aren't exposed as files:

• Create or rename a workspace or lakehouse.
• Manage permissions.
• Change the schema of a Delta table inside Tables/.

When the network is gone¶

Files you've recently opened stay readable from cache. New reads and uploads queue and retry when the network returns. The menu-bar icon shows "offline".