Chart selecting the wrong range of data HELP!

Good Morning.

I've created a Macro to analyse all data in a selected folder.

The macro opens each file, completes some basic formatting, and then create a chart. All data are in columns A to M. X axis being the A culumn and B to M being in the Y axis.

Currently in some cases the data picks up at random points. When all data ranges should start from cell2 of each column.

Here's my code for the chart....

Code:

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' Chart code here
ActiveSheet.Shapes.AddChart2(240, xlXYScatterSmoothNoMarkers).Select
Dim s
For m = 2 To 11
    Set s = ActiveChart.SeriesCollection.NewSeries()
    With s
        .Name = Range("B" & m)
        .XValues = Range("A" & m)
        .Values = Range("B" & m)
    End With
Next m

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