You have two choices:

Create a line chart and set its weight as you want. Then with the chart
selected choose Chart, Custom Type, User-defined, Add. Or select the chart
and choose Chart, Set as default chart.

Cheers,
Shane Devenshire
Microsoft Excel MVP



"Default width of line" <Default width of line @discussions.microsoft.com
wrote in message ...
How to change the default width of line when deal with chart?