zeisstopnm
Convert a Zeiss confocal file to Netbpm format. More information: https://manned.org/zeisstopnm.1.
- Convert a Zeiss cofocal file into either 
.pgmor.ppmformat: 
zeisstopnm {{path/to/file}}
- Convert a Zeiss cofocal file to Netbpm format while explicitly specifying the target file type:
 
zeisstopnm -{{pgm|ppm}} {{path/to/file}}