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extensionAlternateVersionsArray.prefer object

Specifies an equivalent COM add-in or VSTO add-in that must be used in place of the Microsoft 365 Web Add-in for Windows.

Properties that reference this object type:

Syntax

{
  "comAddin": {
    "progId": "{string}"
  },
  "xllCustomFunctions": {
    "fileName": "{string}"
  }
}

{
  "comAddin": {
    "progId": "{string}"
  }
}

Properties

comAddin

Specifies a COM or VSTO add-in that must be used in place of the Microsoft 365 Web Add-in for Windows.

Type
comAddin

Required
—

Constraints

Supported values

xllCustomFunctions

Type
extensionXllCustomFunctions

Required
—

Constraints

Supported values

Remarks

The comAddin property has the string "com" for historical reasons. It refers to both COM and VSTO add-ins. Similarly, the term "progId" is usually associated with only COM add-ins, but its value can be the name of a VSTO add-in.

Examples

{
 "extensions": [
    {
      "alternates": [
        {
          "prefer": {
            "comAddin": {
              "progId": "ContosoExtension"
            }
          }
        }
      ]
    }
  ]
}

See also