Yet another *.pcb file format is CAM350.  There is a file viewer available
at their web site www.ecam.com

An easy check is to open the file in a text editor.  CAM350 format should
be ASCII text with a "MODE Cam" and a version number like 5.0 or 6.0 in the
first couple lines.

##############################################################
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
##############################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in
the body:
To subscribe:   SUBSCRIBE TECHNET <your full name>
To unsubscribe:   SIGNOFF TECHNET
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information.
If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or
847-509-9700 ext.5365
##############################################################