How to Hide and Unhide Excel 2010 Worksheets
In Excel 2010, you can hide any worksheet in a workbook to remove it from view so that others cannot see the data it contains. You can unhide the worksheet at any time.
All formula references to a hidden worksheet are still valid even when a worksheet is hidden.
1Click anywhere on the worksheet that you want to hide.
You can select multiple worksheets by Ctrl-clicking their tabs if you want to hide more than one worksheet at a time.
2In the Cells group on the Home tab, choose Format→Hide & Unhide→Hide Sheet.
Excel hides the worksheet from view.
3To unhide the worksheet, choose Format→Hide & Unhide→Unhide Sheet.
The Unhide dialog box appears, listing all currently hidden worksheets in the active workbook.
4Select the worksheet you want to unhide and click OK.
The worksheet appears in the workbook.