You can adjust the WIDTH of the line to make it as thin or thick as you like.
You can make your line chart have a COMPOUND or DASH effect.
You can also add ARROWS at the start and end of the line chart, as well as make the chart have a SMOOTHED LINE effect.
See below how you can do this.
Download workbookLine-Styles.xlsx
John Michaloudis is a former accountant and finance analyst at General Electric, a Microsoft MVP since 2020, an Amazon #1 bestselling author of 4 Microsoft Excel books and teacher of Microsoft Excel & Office over at his flagship MyExcelOnline Academy Online Course.