Excel formula to Unhide sheets from an excel file

hi there. you have to use VBA to do that.

Sub UnhideSheets()

Dim ShtX As Worksheet

For Each ShtX In Worksheets

ShtX.Visible = xlSheetVisible

Next

End Sub

How to install your new code

1. Copy the Excel VBA code
2. Select the workbook in which you want to store the Excel VBA code
3. Press Alt+F11 to open the Visual Basic Editor
4. Choose Insert > Module
5. Edit > Paste the macro into the module that appeared
6. Close the VBEditor
7. Save your workbook (Excel 2007+ select a macro-enabled file format, like *.xlsm)

To run the Excel VBA code:

1. Press Alt-F8 to open the macro list
2. Select a macro in the list
3. Click the Run button