Why should you document the contents of a workbook?
Documenting helps future users of workbooks to understand the workbook content.
Workbooks can get extremely long and complicated, making it harder to traverse through them.
Documenting the contents of a workbook makes it easier for users to utilize the workbook by providing ways to navigate and find the relevant information.
It is imperative to document the contents in order to avoid errors and confusion, and to make it easier for use by the next person who works on it.