'WorksheetDeleteRow.bas deletes all rows of data if contents in specified
'column meet specified criteria. In this example, rows are deleted if
'data in Column C is greater than 70.

'======================================

Sub Main

 	Dim SurferApp As Object
 	Set SurferApp = CreateObject("Surfer.Application")
 	SurferApp.Visible = True

 	Dim Wks As Object
    filename$ = GetFilePath(,"dat")
    If filename$ <> "" Then
    Set Wks = SurferApp.Documents.Open(filename$)
   	End If

'Sets the WksRange variable to all rows in Column C
 	Dim WksRange As Object
	Set WksRange = Wks.Columns(Col1:=3)

'Deletes the entire row if data in column C is greater than 70
		For i=2 To Wks.UsedRange.LastRow
  			If WksRange.Cells(i,1) > 70 Then
  			WksRange.Cells(i,1).Delete(Direction:=wksDeleteRows)
  			i=i-1
  			End If
		Next i

End Sub