A plot file is output that is created by the same software process used when data is sent directly to a printer; however, the data is output to a file name on a hard disk or floppy diskette versus a computer hardware port. This output file can then be sent to the printer at another time (or location) without having the software re-generate the information.
The plot file contains data that is formatted into the printer's language. These include Print to files such as .PRn, .PS etc.
Plotting to a file must be supported by the software being used. Refer to the software documentation or to the software vendor for information regarding the software's capability to plot to file. Note that it is also possible to use the send to FTP command to send the files.