The extension is free and now on the Chrome Web Store — add it in one click and it updates automatically. Your license key unlocks the full sync from myOffice into your own GoHighLevel.
The ZIP is only for offline or no-store-access cases, and it does not update itself. Whenever you can, install from the Chrome Web Store instead so updates arrive automatically.
Into a folder you'll keep (e.g. Documents/ghl-sync). If you delete the folder, Chrome removes the extension.
Turn on Developer mode (top right), press Load unpacked and pick the unzipped folder.
Click the puzzle icon in Chrome's toolbar and pin “GHL Sync”.
Don't have one yet? Get it from the pricing section. → Pricing