works on all the chart sheets in the active workbook

 
Sub ChartType2()
    Dim myChart As Chart
    For Each myChart In ActiveWorkbook.Charts
        myChart.Type = xlArea
    Next myChart
End Sub

1.	Manipulating Charts
2.	Adds major gridlines, title, and x-axis labels to an embedded chart
3.	Loop through each series in chart and alter marker colors
4.	Add Chart Sheet
5.	Background and Foreground color
6.	Working with a Chart Axis
7.	Formatting a Basic Chart
8.	Format Axis, Title font size and color
9.	Set Axes gridline and its border color
10.	Set PlotArea LineStyle, border color, width and height
11.	Looping through the ChartObjects collection: changes the chart type of every embedded chart on the active sheet.
12.	Modifying chart properties: changes the Legend font for all charts on the active sheet.
13.	Applying chart formatting
14.	Changing a Chart Title Using VBA
15.	To fill the bars of a data series with a picture
16.	sets up a two-color gradient using two theme colors:
17.	formats the trendline for the first series in a chart:
18.	formatting a border
19.	adds a line around the title and adds a glow around that line:
20.	adds a light blue shadow to the box surrounding a legend:
21.	proper syntax for SoftEdge:
22.	Format Soft Edges With Loop
23.	To apply one of the 3-D rotation presets to a chart element: use the SetPresetCamera method
24.	Changing the Bevel and 3-D Format
25.	defines a Chart object variable and a ChartGroup object variable and then stops:
26.	creates the chart with absolute reference and format it

works on all the chart sheets in the active workbook : Chart Format « Excel « VBA / Excel / Access / Word