Graphs do not exist outside of Excel, so you can't "extract graphs" , you have to create images :)

Graphing with Perl
Graph generation using MS Excel
Exporting an Excel Chart to PNG using Win32::OLE

Once you have an image file, you can use a CGI programming to display it (if you insist)

How can I use a CGI script to return an image?

In reply to Re^3: Extract Excel graphs by Anonymous Monk
in thread Extract Excel graphs by tarunkhanna

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