2.1.1498 Part 4 Section, hMode (Height Mode)

For additional notes that apply to this portion of the standard, please see the notes for wMode, §

a.   The standard states that edge is a valid value for the val attribute of hMode.

Office only saves a value of factor for the val attribute.  Files opened with val equal to edge will be changed to factor on save and the val of sibling element h will be  updated to reflect this mode change and correctly preserve the manual size.