Whatever is on the clipboard when you paste, gets pasted.
Maybe an example will help. If you select a cell range and then click
the Select Visible Cells button, only the visible cells within the range
will be copied to the clipboard. So if you dragged over a range that
included columns A through G, but columns D & E were hidden, the values
in D & E will not be copied to the clipboard. When you paste, you'll get
all the values except for those that were in columns D & E. If you
selected entire columns, your result will be different - paste will
include columns D&E even if they are hidden.
-Jim
--
Jim Gordon
Mac MVP
Co-author of Office 2008 for Mac All-in-One For Dummies
http://tinyurl.com/Office-2008-for-Dummies