If you'd like to draw the charts yourself from the data, have a look at GD.

Text::CSV, Text::CSV::Simple or Text::CSV_XS can help extracting the CSV data, Spreadsheet::ParseExcel helps with Excel Spreadsheets.

Here are some random introductory links. Google probably can come up with more.

On-The-Fly Graphics with GD Creating Charts with GD::Graph

In reply to Re: Creating Graphs from an excel or a comma delimited file. by rblasch
in thread Creating Graphs from an excel or a comma delimited file. by swetashah23

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