Making A Worksheet Very Hidden

You can use Excel's Format, Sheet, Hide to hide an entire worksheet. But unless you password-protect the workbook structure, anyone can select Format, Sheet, Unhide to see the hidden sheet.

If you use Excel 97 or later, here's another option:

1. Press Alt-F11 to display the Visual Basic Editor
2. in the Project window, double-click Microsoft Excel Objects and select the sheet to hide.
3. Press F4 to display the Property box
4. Set the sheet's Visible property to xlSheetVeryHidden.

To unhide the sheet, repeat these step, but set the Visible property to xlSheetVisible.