Formatting the workbook
You can format the workbook in a variety of ways: You can insert, hide, and move rows and columns; add or edit formulas; change font; add bold text; change color; add borders; etc. The saved workbook retains all your formatting changes.
Caution:
Do not add characters to the dimension member names or
descriptions that were inserted using the cell-based workbook. Values may no
longer display after a member name and description has been edited in this way.
To restore missing values, remove the added characters.