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Safetynerd's avatar
Safetynerd
Copper Contributor
Jun 20, 2024

Excel Labs Add-in fails to load ("internal error")

Installed Excel Labs Add-in from MS Store. Icon appears in ribbon. When clicked, “loading appears” for several secs. Then “Failed to Load” and "internal error" messages appear. Retried and reinstalled many times with same result.

MSO 2019
MS Windows 10 Home

excel
Formulas and Functions
  • AshaKantaSharma's avatar
    AshaKantaSharma
    Iron Contributor
    Aug 20, 2024
    1) Update Excel and Windows, 2) Check add-in compatibility, 3) Clear Excel cache, 4) Disable other add-ins, 5) Run Excel as administrator, 6) Check add-in settings, 7) Reinstall the add-in, 😎 Check for updates, 9) Inspect error details
    • Safetynerd's avatar
      Safetynerd
      Copper Contributor
      Aug 30, 2024

      AshaKantaSharma 

      Thanks for the suggestions. I went through all the checks you mentioned and it still fails to load. I found the Console had just one error: favicon.ico: 

      Failed to load resource: the server responded with a status of 404 ().

      The https://advancedformulaenvironment.officeapps.live.com/favicon.ico link showed: 

      This XML file does not appear to have any style information associated with it. The document tree is shown below.
      <Error>
      <Code>BlobNotFound</Code>
      <Message>The specified blob does not exist. RequestId:3dc7dc08-f01e-0067-1d7c-faab31000000 Time:2024-08-30T01:33:46.5797496Z</Message>
      </Error
      Is this relevant to my Failure to Load issue?

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