The default text editor is the Multiline Text Editor dialog box, but you can elect to use an alternate editor by specifying the editor with or the MTEXTED system variable. You can use any text editor that saves files in ASCII format.
If you use an alternate text editor for multiline text, you specify the properties of the multiline text object on the command line first. AutoCAD LT then opens the text editor for entering text. When you close the text editor, AutoCAD LT inserts the text within the width limit you specified.
To edit text using an alternate text editor, use the same format codes you used to create the original text. To avoid losing format information when you make changes to the text, use the same text editor you used to create the text.