HomePage > Components and HowTos > FileTypes
Puppy Package Management system. Click on a downloaded Pet file to install software.
An older pet is more likely to work on a newer puppy than the reverse.
When you compile a package, it looks at all the specifics of your OS and builds the program customized for that OS. Simpler programs need fewer specifics than complex ones - so simple stuff tends to be more portable.
Also, if your using a derivative its useful to find out which 'mainstream' version of Puppy its based on.
MD5sum appended on the end. The in-built MD5sum is handy, as the file can be checked for integrity after being downloaded. They are used for packaging programs designed or compiled for Puppy and provide desktop icons, menu info etc specific to Puppy. Tarball files have a .tar extension. Or tar.gz if compressed with gzip. Pet files on the other hand have a .pet extension.
-right clicking on the Pet file in the filer window
-selecting File '<filename>.PET' > 'Extract here'
Puppy Package Management
GnewPet - extracts pets and sfs from current installation
PetMaker - simple tools for making pets and sfs
SFS - sfs format packages
Barry's Blog guide to Installing and Making Pets
Guide to making PET files