try this code,

Copy the code below.
Open the Excel file in which you want to use the code.
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Save the file and close the VBE.


'bala sesharao edited to sort worksheets
Option Explicit

Sub SortWorksheets()

Dim N As Integer
Dim M As Integer
Dim FirstWSToSort As Integer
Dim LastWSToSort As Integer
Dim SortDescending As Boolean

SortDescending = False

If ActiveWindow.SelectedSheets.Count = 1 Then

'Change the 1 to the worksheet you want sorted first
FirstWSToSort = 1
LastWSToSort = Worksheets.Count
Else
With ActiveWindow.SelectedSheets
For N = 2 To .Count
If .Item(N - 1).Index < .Item(N).Index - 1 Then
MsgBox "You cannot sort non-adjacent sheets"
Exit Sub
End If
Next N
FirstWSToSort = .Item(1).Index
LastWSToSort = .Item(.Count).Index
End With
End If

For M = FirstWSToSort To LastWSToSort
For N = M To LastWSToSort
If SortDescending = True Then
If UCase(Worksheets(N).Name) UCase(Worksheets(M).Name) Then
Worksheets(N).Move Befo=Worksheets(M)
End If
Else
If UCase(Worksheets(N).Name) < UCase(Worksheets(M).Name) Then
Worksheets(N).Move Befo=Worksheets(M)
End If
End If
Next N
Next M

End Sub