I have a difficulty printing an excel spreadsheet to a dwf. When I insert the spreadsheet into the dwg file and publish to a dwf, the spreadsheet in the preview looks fine as does the spreadsheet in the dwf file. But when I send the dwf to the plotter to make a physical print of it, the spreadsheet does not print. Everything else prints fine.

If I print the dwf to a pdf, and then send it to the plotter, the spreadsheet prints.

I am confused on this. Any help please?
Josh