The Workbook windows are protected.

To unprotect them (you may need a password):
Choose ToolsProtectionsUnprotect workbook

Wade www wrote:
The specific workbook opens each worksheet as a resized window about 95% of
screen with no minimize, resize, or close box in the top blue title bar of
the worksheet. One worksheet Columns A and B appear hidden or off screen
with a windows split pane. They cannot be restored (not even with the format
column unhide executed from the worksheet global box selected using
format/columns/ unhide. The windows split and unfreeze options are grayed
out.


--
Debra Dalgleish
Excel FAQ, Tips & Book List
http://www.contextures.com/tiptech.html