How do I change the size of Value Axis Title box for an Excel Cha.

[LISSJMC]

The title box cannot be sized. I must reduce the font to very small to
prevent truncating the title.
I would have thought I could drag the box to the size I wanted but I do not
get the chance to do so.

 

[Debra Dalgleish]

Instead of a Title, you can use a Text Box:

Select the Chart
Type the text you want in the Title
Press the Enter key

A text box will appear in the centre of the chart
Drag it to the location you want it, and format/resize as desired.

If you prefer, you can link the text box to a worksheet cell, and
display its text:
Select the chart
Type an equal sign
Click on the cell you want to link
Press the Enter key