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In this tutorial, I'll show you how to open word file in RichTextBox using Microsoft Word Automation
Open your form designer, then drag the RichTextBox and Button controls from the Visual Studio Toolbox to your winform
You can design a simple UI that allows you to select a word file, then open and display the contents of the word file into the RichTextBox control
You need to add a reference to the Microsoft Word Object Library
We will use Microsoft Word automation to open a new document
Word Automation is a technology where you can write a .NET application that uses the Word client executable to accomplish some task such as creating a document
querying a document for content, or modifying the content of a document
So, make sure your computer has Microsoft Office installed
To display the content of a word file in RichTextBox, you first need to open the word file, then copy all the content to the Clipboard, and finally convert the content from Clipboard to RichTextFormat
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