All GIS File Extensions

jpg

Joint Photographic Experts Group- lossy graphics file

rar

WinRar Compressed Folder

xls

excel spreadsheet

mxd

arcmap- map document

aux

auxillary file- accompanies the raster in the same location and stores any auxiliary information that cannot be stored in the raster file itself.

sid

compress raster; seamless image database

zip

compressed folder

dbf

database file

doc

document

gdb

geo database

html

hyper text markup language

jgw

jpeg world file- georeferencing information for *.jpg raster maps

kmz

keyhole mark up language zip- placemark file for google earth

kml

keyhole markup language- designed to annotate and overlay visualizations on various two-dimensional, Web-based online maps or three-dimensional Earth browsers (such as Google Earth)

mdb

microsoft database

pdf

portable document file

prj

projection file- coordinate system and projection info

rrd

reduced resolution dataset

shp

shapefile

gsg

signature file for image classification

sdf

standard database format files, used for storing structured data

txt

text file

tfw

tiff world file

tiff

uncompressed raster image