Spell checking is the one of the common and very useful feature in a text editor / email client. As you all know spell checker automatically detect and suggest the spelling. We have some extensions available in Visual Studio gallery to get spell checking in Visual Studio.
Visual Studio spell checker finds the spelling mistake in your code , strings that you used , comments that you write and check any plain text file in the Visual Studio. Unfortunately it does not support in HTML and XAML files. Spell checker helps you to correct the spelling mistake if not a spelling mistake you can add it in a dictionary. So let me show you how to find and install spell checker in Visual Studio.
Go to Visual Studio gallery and search for Multi Language Spell Checker . You can see it is free one with good rating. Click on download button you will get SpellChecker.vsix and open it with Visual studio . You can install the same via Visual Studio Extension and Updates window.
Open the Visual Studio and write something. Validation spelling is wrong and we got nice suggestion from spell checker.
You can add any word to dictionary.