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Install Excel Genius

Works in Excel 2016, 2019, 2021, Microsoft 365 (Windows, Mac, Web).

1. Download the manifest
Download manifest.xml

Save it somewhere you'll remember (Desktop is fine).

New
Excel 365 / Excel for the Web
  1. Open any workbook in Excel.
  2. Go to Insert → Get Add-ins (or Add-ins → More Add-ins).
  3. Click My Add-ins → Manage My Add-ins → Upload My Add-in.
  4. Select manifest.xml and click Upload.
  5. Open Excel Genius from the Home ribbon.
Classic
Excel 2016 / 2019 / 2021 (Windows)

Sideload via a trusted shared folder:

  1. Create a folder, e.g. C:\ExcelAddins\, and copy manifest.xml into it.
  2. Share the folder (right-click → Properties → Sharing) and copy the network path (e.g. \\YOUR-PC\ExcelAddins).
  3. In Excel: File → Options → Trust Center → Trust Center Settings → Trusted Add-in Catalogs.
  4. Paste the network path, click Add catalog, tick Show in Menu, click OK.
  5. Restart Excel, then go to Insert → My Add-ins → Shared Folder tab and select Excel Genius.
Excel for Mac
  1. In Finder, open ~/Library/Containers/com.microsoft.Excel/Data/Documents/wef (create the wef folder if missing).
  2. Drop manifest.xml into the folder.
  3. Restart Excel. Find Excel Genius under Insert → My Add-ins → Developer Add-ins.
Tenant-wide rollout (IT admins)
Upload the manifest via the Microsoft 365 admin center → Settings → Integrated apps → Upload custom apps. Users will see Excel Genius automatically on their ribbon — no sideloading required.