Public Sub UnhideSheet()
Dim xlsApp As Object
Dim xlsBook As Object
Dim xlsSheet As Object
Dim fileName As String
fileName = fileName 'location and file of the XLS file you wish to change
Set xlsApp = CreateObject("Excel.Application")
Set xlsBook = xlsApp.Workbooks.Open(fileName)
xlsApp.Visible = True 'Set to False if you don't want to see the workbook load
'Sheets to set to visible
xlsBook.Sheets("Sheet1").Visible = True
xlsBook.Sheets("Sheet2").Visible = True
xlsBook.Sheets("Sheet3").Visible = True
'Save and quit
xlsApp.ActiveWorkbook.Save
xlsApp.Quit