Excel: Vba code for deleting entire row based on a criteria

Sub Loop_Example()
Dim Firstrow As Long
Dim Lastrow As Long
Dim Lrow As Long
Dim CalcMode As Long
Dim ViewMode As Long

With Application
CalcMode = .Calculation
.Calculation = xlCalculationManual
.ScreenUpdating = False
End With

'We use the ActiveSheet but you can replace this with
'Sheets("MySheet")if you want
With ActiveSheet

'We select the sheet so we can change the window view
.Select

'If you are in Page Break Preview Or Page Layout view go
'back to normal view, we do this for speed
ViewMode = ActiveWindow.View
ActiveWindow.View = xlNormalView

'Turn off Page Breaks, we do this for speed
.DisplayPageBreaks = False

'Set the first and last row to loop through
Firstrow = 6
Lastrow = 6359

'We loop from Lastrow to Firstrow (bottom to top)
For Lrow = Lastrow To Firstrow Step -1

'We check the values in the A column in this example
With .Cells(Lrow, "EC")

If Not IsError(.Value) Then

If .Value = 0 Then .EntireRow.Delete
'This will delete each row with the Value "ron"
'in Column A, case sensitive.

End If

End With

Next Lrow

End With

ActiveWindow.View = ViewMode
With Application
.ScreenUpdating = True
.Calculation = CalcMode
End With

End Sub