How to: Modify Existing Snippets
IntelliSense Code Snippets are XML files with a .snippet file name extension that can be easily modified using any XML editor, including Visual Studio.
To modify an existing IntelliSense Code Snippet
Use the Code Snippets Manager to locate the snippet that you want to modify.
Copy the path of the code snippet to the clipboard and click OK.
On the File menu, click Open, and click File.
Paste the snippet path into the File location box and click OK.
Modify the snippet.
On the File menu, click Save. You must have write access to the file to save it.