In the Input parameters section of the dialog, enter the minimum and maximum aspect ratios for which you would like to see a report.
In the Preferred definition section, choose between Standard or Normalized formats. Normalized is the recommended format, except for purposes of compatibility with earlier product formats.
In the Options section, select how you would like to view the results of the diagnostic.
Within this tool, you can generate a graphical representation of the mesh aspect ratios, or a text report which lists the minimum, maximum, and average aspect ratio, and the number of elements within the specified aspect ratio range.