Version Ref: Version 6.1.00 (USP 6.0.03)
Syntax:
e = XL_CENTERV([sheet])
Center the worksheet data vertically between the margins on the printed
page.
Parameters -
sheet : Handle of sheet to change mode. Use blank, "0", or "-1" to use
the default sheet.
Returns "1" on success and "-1" on error. XL_ERROR() can be called to return
the last error.