If a Microsoft Office Word template has managed code extensions, the project assembly is not called if the template is attached as a global template or loaded from the Startup directory of Word. In addition, the document does not recognize the format of a template that is part of a Visual Studio Tools for Office solution.

There is no Visual Studio Tools for Office project for creating an Excel add-in (.xla file). It is possible to save a workbook as an .xla file, but it is not a supported operation and is not recommended. If you save a workbook that has managed code extensions as a Microsoft Office Excel Add-In (*.xla) file, you can select it in the Add-Ins dialog box to apply to another workbook. In some cases your code will run in the target workbook after the add-in is applied, but such use of the Visual Studio Tools for Office solution is not supported.

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