I would like to change it to affect the whole workbook
Iterar as planilhas da pasta de trabalho, iterando todas as planilhas.
Sub ChangeChartsInWorkbook()
Dim OneSheet As WorkSheet
Dim OneChart As ChartObject
For Each OneSheet In ThisWorkbook.Sheets ' or in a certain book
For Each OneChart In OneSheet.ChartObjects
OneChart.Chart.ApplyChartTemplate ("C:\Users\user\AppData\Roaming\Microsoft\Templates\Charts\exemple.crtx")
Next OneChart
Next OneSheet
End Sub