3GP (3GPP file format) is a multimedia container format defined by the Third Generation Partnership Project (3GPP) for 3G UMTS multimedia services. It is used on 3G mobile phones but can also be played on some 2G and 4G phones.
GP is a file extension for a Haskell language file. GP stands for Gofer Project. …GP files contain Gofer (Good For Equational Reasoning) program language. GP files can be opened by the Gofer application.