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How to add VSTO Excel add-in to online Office 365 Excel? RRS feed

  • Question

  • Hi have developed the VSTO Excel addin using Visual Studio and now I want to test this addin on online Office 365 Excel.

    I found option "Upload My Add-in" in online Excel but its only accepting add-in manifest in XML format and Visual Studio generating add-in manifest in DLL format.

    What is the proper way to add VSTO Excel add-in to online Office 365 Excel?


    Monday, July 23, 2018 2:49 AM

Answers

  • Hi Atul,

    According to my research, VSTO add-ins are not supported in Excel Online. Instead consider switching over to the web add-in model. You need to develop a web-based add-in instead. Hope it helps you.

    Just reference: https://docs.microsoft.com/en-us/office/dev/add-ins/overview/office-add-ins

    Thanks,

    Simon


    True mastery of any skill takes a lifetime.

    • Marked as answer by Atul Bhavasar Monday, July 23, 2018 4:15 AM
    Monday, July 23, 2018 3:14 AM
    Moderator

All replies

  • Hi Atul,

    According to my research, VSTO add-ins are not supported in Excel Online. Instead consider switching over to the web add-in model. You need to develop a web-based add-in instead. Hope it helps you.

    Just reference: https://docs.microsoft.com/en-us/office/dev/add-ins/overview/office-add-ins

    Thanks,

    Simon


    True mastery of any skill takes a lifetime.

    • Marked as answer by Atul Bhavasar Monday, July 23, 2018 4:15 AM
    Monday, July 23, 2018 3:14 AM
    Moderator
  • Thanks Simon for useful information and quick reply :)
    Monday, July 23, 2018 4:16 AM