What is the maximum number of data points that can be graphed in an Excel line chart?

In Excel, the maximum number of data points that can be graphed in a line chart is 32,000 for Excel 2007 and later versions. This limit applies to the total number of data points across all series in the chart. However, for practical purposes, performance may degrade with very large datasets, so it's often advisable to use fewer data points for clarity and readability.