You can only use CE edit the RTF file. Word doc is not supported  Right now.

 

Editor.LoadRTF Method:

Loads the contents of an RTF file into the CuteEditor control.


Editor.SaveRTF Method
Saves the contents of the Cute Editor to a RTF file.

Remarks
The SaveRTF method enables you to save the entire contents of the control to a RTF file. If the file name that is passed to the path parameter already exists at the specified directory, the file will be overwritten without notice. You can use the LoadFile, LoadWord, LoadRTF, LoadText method to load the contents of a file into the CuteEditor.

Example:

 
editor1.SaveRTF("~/doc/myHtmlfile.rtf");