ToolBelt for Excel

1. Open the downloaded ToolBelt-Setup.cmd (double-click). If Windows shows a security note, choose Run — the setup is a small, readable script.
2. Approve the one-time administrator prompt (it registers the add-in folder Excel requires for add-ins installed outside the Office Store).
3. Restart Excel → Insert → Get Add-ins (or Home → Add-ins → More Add-ins) → SHARED FOLDER tab → ToolBelt for Excel → Add.

To remove it later: ToolBelt-Uninstall. Prefer to see exactly what setup does? Read the install script — ~40 commented lines.

1. Download the add-in file above (ToolBelt-manifest.xml — a tiny text file; the add-in itself runs from this site).
2. Open any workbook at excel.cloud.microsoft.
3. Go to Home → Add-ins → More Add-ins (on some ribbons: Insert → Add-ins).
4. Choose the MY ADD-INS tab → Upload My Add-in → select the downloaded file.
5. ToolBelt appears on your ribbon. Select a range and click a fix.

1. Download the add-in file above (goes to your Downloads folder).
2. Open Terminal (Cmd+Space, type "Terminal") and paste:

mkdir -p ~/Library/Containers/com.microsoft.Excel/Data/Documents/wef
cp ~/Downloads/ToolBelt-manifest.xml ~/Library/Containers/com.microsoft.Excel/Data/Documents/wef/

3. Restart Excel → Insert → My Add-ins (click the little arrow next to it) → ToolBelt for Excel.