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.uccapilog - Microsoft Windows Live Messenger UCC API log file
.dlc - JDownloader download link container
.xml - XML document
.dsc - Debian source control file
.metadata_never_index - MAC OS X metadata settings file
.enc - Encore musical notation file
.pmd - Adobe PageMaker file
.pinstall - Google Picasa file
file extension PGC - Portable Gaming Notation (PGN) compressed format
File extension PGC description:
PGN is "Portable Game Notation", a standard designed for the representation of
chess game data using ASCII text files. PGN is structured for easy reading and
writing by human users and for easy parsing and generation by computer
programs. The intent of the definition and propagation of PGN is to facilitate
the sharing of public domain chess game data among chessplayers (both organic
and otherwise), publishers, and computer chess researchers throughout the
world.
PGN is not intended to be a general purpose standard that is suitable for every
possible use; no such standard could fill all conceivable requirements.
Instead, PGN is proposed as a universal portable representation for data
interchange. The idea is to allow the construction of a family of chess
applications that can quickly and easily process chess game data using PGN for
import and export among themselves.