microsoft excel training - Chart - [demo testing]

You can change the width of columns but locating your mouse between the letter of the columns and waiting for the shape to turn to a two-headed arrow, then you can drag the column to become wider or narrower as you wish. Also if you double-click on the mouse the column will automatically resize to fit the contents of that column.

I do hope that helps you, if there is anything else please do not hesitate to post in another question

Trace