Option Explicit 
 
Sub ExcelDiet() 
     
    Dim j               As Long 
    Dim k               As Long 
    Dim LastRow         As Long 
    Dim LastCol         As Long 
    Dim ColFormula      As Range 
    Dim RowFormula      As Range 
    Dim ColValue        As Range 
    Dim RowValue        As Range 
    Dim Shp             As Shape 
    Dim ws              As Worksheet 
     
    Application.ScreenUpdating = False 
    Application.DisplayAlerts = False 
     
    On Error Resume Next 
     
    For Each ws In Worksheets 
        With ws 
             'Find the last used cell with a formula and value
             'Search by Columns and Rows
            On Error Resume Next 
            Set ColFormula = .Cells.Find(What:="*", After:=Range("A1"), LookIn:=xlFormulas, _ 
            LookAt:=xlPart, SearchOrder:=xlByColumns, SearchDirection:=xlPrevious) 
            Set ColValue = .Cells.Find(What:="*", After:=Range("A1"), LookIn:=xlValues, _ 
            LookAt:=xlPart, SearchOrder:=xlByColumns, SearchDirection:=xlPrevious) 
            Set RowFormula = .Cells.Find(What:="*", After:=Range("A1"), LookIn:=xlFormulas, _ 
            LookAt:=xlPart, SearchOrder:=xlByRows, SearchDirection:=xlPrevious) 
            Set RowValue = .Cells.Find(What:="*", After:=Range("A1"), LookIn:=xlValues, _ 
            LookAt:=xlPart, SearchOrder:=xlByRows, SearchDirection:=xlPrevious) 
            On Error GoTo 0 
             
             'Determine the last column
            If ColFormula Is Nothing Then 
                LastCol = 0 
            Else 
                LastCol = ColFormula.Column 
            End If 
            If Not ColValue Is Nothing Then 
                LastCol = Application.WorksheetFunction.Max(LastCol, ColValue.Column) 
            End If 
             
             'Determine the last row
            If RowFormula Is Nothing Then 
                LastRow = 0 
            Else 
                LastRow = RowFormula.Row 
            End If 
            If Not RowValue Is Nothing Then 
                LastRow = Application.WorksheetFunction.Max(LastRow, RowValue.Row) 
            End If 
             
             'Determine if any shapes are beyond the last row and last column
            For Each Shp In .Shapes 
                j = 0 
                k = 0 
                On Error Resume Next 
                j = Shp.TopLeftCell.Row 
                k = Shp.TopLeftCell.Column 
                On Error GoTo 0 
                If j > 0 And k > 0 Then 
                    Do Until .Cells(j, k).Top > Shp.Top + Shp.Height 
                        j = j + 1 
                    Loop 
                    If j > LastRow Then 
                        LastRow = j 
                    End If 
                    Do Until .Cells(j, k).Left > Shp.Left + Shp.Width 
                        k = k + 1 
                    Loop 
                    If k > LastCol Then 
                        LastCol = k 
                    End If 
                End If 
            Next 
             
            .Range(.Cells(1, LastCol + 1), .Cells(.Rows.Count, .Columns.Count)).EntireColumn.Delete 
            .Range("A" & LastRow + 1 & ":A" & .Rows.Count).EntireRow.Delete 
        End With 
    Next 
     
    Application.ScreenUpdating = True 
    Application.DisplayAlerts = True 
     
End Sub