how to create a diagram in excel

I need to plot a graph of Xcp/C as a function of a

i am attaching the values and a screenshot of how the plot should look like. Any help would be appreciated.
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It can be done in Excel 2010 this way-

Select the data from A3:G11 (the data table)

The choose Insert -> Charts -> Scatter (choose the scatter with smooth lines) to insert a graph of that data.

Right-click on the graph and choose Select Data. Remove all series except series 6. Give series 6 the name of your data (Xcp/C)

The y axis will still look odd, but you can alter its position by selecting the graph, going to the Layout tab in Chart Tools, click on Axes and select Primary Horizontal axis, More primary horizontal axis options. Down the bottom you will see Vertical axis crosses - that is where you can enter the position of the vertical axis in relation to the horizontal. Make any other changes to the horizontal axis (the graph will default to starting at -5 on the x axis and you might want to change it)

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c_hocklandAuthor Commented:
perfect ! many thanks . I worked like a charm.
Glad to help!
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