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GEDCOM is the standing for Genealogical Data Communication is an open specification for exchanging genealogical data between different genealogy software. GEDCOM was developed by The Church of Jesus Christ of Latter-day Saints (LDS Church) as an aid to genealogical research.

A GEDCOM file is plain text (usually either ANSEL or ASCII) containing genealogical information about individuals, and meta data linking these records together. Most genealogy software supports importing from and exporting to GEDCOM format However, some genealogy software programs incorporate the use of proprietary extensions to the format, which are not always recognized by other genealogy programs, such as the GEDCOM 5.5 EL (Extended Locations) specification

While GEDCOM X and several other specifications have been suggested as replacements, the current 1996 version remains the industry standard 20 years on.