Introduction to Visual Studio Tools for Office (VSTO).
By using Microsoft Office as the front end of your solution, you can take advantage of familiar Microsoft Office user interfaces and tools, such as word processing in Word, data analysis in Excel, data analytics in data, and email management in Outlook. You can develop solutions in Visual Studio to customize Office applications and add specific features that business processes require. For example, you can turn Word into a contract generator that collects contracts outside of pre-existing parts that can or cannot be edited. By using Excel, you can create customized automated budget worksheets for different projects. Your users can also use Office solutions offline, making complex solutions simpler and more practical than using web-based architectures.
VSTO add-ins to target Office 2007 or Office 2010, or extend Office 2013 and Office 2016 beyond the possibilities of Office add-ins. VSTO add-ins only run on desktop. Users must install VSTO add-ins, so it's often difficult to deploy and support. However, VSTO add-ins can integrate more closely with Office. For example, you can add tabs and controls to the Office ribbon and perform advanced automation tasks, such as merging documents or modifying diagrams. You can interact with Office objects with the help of the .NET Framework and using C# and Visual Basic.
VSTO development tools installed
Open the Visual Studio Installer app, select Modify Visual Studio 2022 app, and check InstallOffice/SharePoint development, as shown in the figure below:
After waiting for the installation to complete, open VS 2022, create a new project, and you can see the template for Office development, as shown in the figure below:
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