Notes Tab
Working with Notes tab in Requirements Editor.
The Notes tab is used to show the different Notes that belong to the document;
both in authoring new and editing existing requirements files. This document is
presented in the XML structure of the file. 
Important: Notes have a limit of 32676 characters
(32K). This ensures that the entire note fits within the limitation of a single
Excel spreadsheet cell. If more characters are required to satisfy the note, you
must add another note row.