Issue:
Title missing in Excel chart/graph
Resolution:
Click anywhere in the chart to which you want to add a title.
This displays the Chart Tools, adding the Design, Layout, and Format tabs.
On the Layout tab, in the Labels group, click Chart Title.
References:
http://office.microsoft.com/en-us/excel-help/add-or-remove-titles-in-a-chart-HP001234162.aspx