Legacy printer driver configuration files have the extension .plt. These printer driver configuration files are ASCII text files that can be edited with a text editor. When you select a .plt file for editing in the Print dialog, it opens in Windows Notepad. If you select a .plt file for editing in Print Organizer, it opens it in the Printer Driver Configuration Editor in read-only mode. Therefore, you will need to save it out as a .pltcfg file to make any changes.

Printer driver configuration (.plt) files contain records and associated qualifiers that can be entered in any order (with a few noted exceptions). The following conventions apply to .plt files:

• Records can be in either uppercase or lowercase letters.

• Spaces and tabs before and after data are ignored. All characters to the right of a semicolon are treated as comments and are ignored.

• Blank records and comment-only records are permitted.

• The maximum record length is 1024 characters, therefore each line is a record. When a record requires more than one line, you can place a backslash (\) at the end of the line. This acts as a continuation character, letting you include multiple lines in a single record.