Thanks for the help on directing me to the answer.

Vasile's reply clarified the situation some but another search turned up a 
document which explained how to get the excellon files out of the Eagle Cam 
processor.

Unless you know that the excellon drill files are run differently from the 
RS-274X files you don't have the proverbial snowball's chance of getting it 
right.

Regards,
Andy

>From: "Alan B. Pearce" <A.B.Pearce@rl.ac.uk>
>Reply-To: "Microcontroller discussion list - Public." <piclist@mit.edu>
>To: "Microcontroller discussion list - Public." <piclist@mit.edu>
>Subject: Re: [EE] Eagle CAD drill file help
>Date: Tue, 30 Jan 2007 10:26:18 -0000
>
> >The help file doesn't mention this but the board maker
> >needs it done correctly so I'd really appreciate some suggestions.
>
>Haven't any experience with eagle, but this sounds like the PCB 
>manufacturer
>is expecting "RS274X" also known as "Extended Gerber" format, which has the
>hole size info in the gerber file.
>
>Try using those terms in your help file search.
>
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