It sounds like the workbook is protected.

Tools|protection|Unprotect workbook
(You may need a password)

(it's close enough to the option for protecting the worksheet, so maybe it was a
slip of the mouse.)

stephen wrote:

when i opened my spread sheet this morning it had a window smaller than usual
and i cannot adjust it or move it there are no buttons on the top right side
, so minimising or maximising is not an otion

--

Dave Peterson