Are you often confused by the variety of file extensions in ArcMap, constantly screaming “Who am I? Where am I? What am I doing?”
Good news for everyone, Renowned Instructor Yan Lei from Zhongke Dixin brings you the most detailed analysis of ArcMap suffixes, be sure to bookmark it!
01
.SHP
Shapefile file extension, currently this format is not recommended for use in ArcGIS.
02
.mxd
ArcMap document file, stores a document with several data frames, each data frame contains several layers, styles, annotations, and has version issues, must be saved as a relative path.
03
.lyr
Layer style file in ArcMap, stores some property settings related to layers, such as those set in LayerProperties in ArcMap, including symbolization, labeling, display scale range, hyperlinks, table associations, etc., has version issues.
04
.mxt
ArcGIS mapping template file, where Normal.mxt is the ArcMap configuration file, deleting it can restore the ArcMap interface to its original installation state.
05
.prj
File used to store coordinate system information.
06
.mdb
Personal database file, can be opened with Access, has version issues, ArcGIS 9.3 and ArcGIS 10.0 are incompatible, 10.0 and 10.7 are compatible.
07
.gdb
File Geodatabase, folder extension, also has version issues like .mdb.
08
.sqlite
A lightweight database, native database file for Android, often used in Android phones and other mobile devices.
09
.Geodatabase
Local offline database file accessed by ArcGIS mobile devices, vector format can be edited.
10
.tbx
ArcGIS toolbox file, has version issues, incompatible across different versions.
11
.tpk
ArcMap map tile package file.
12
.mpk
Map package, packages data and mxd document into a compressed file, can be opened in ArcGIS 10.0 and later.
13
.gpk
Geoprocessing package, packages running tools or models with data into a compressed file, can be used after unpacking.
14
.img
File format for remote sensing images, also commonly used formats for ERDAS and ENVI software.
15
.py
ArcGIS Python source code file.
16
.xyz
XYZ files store x, y, and z coordinates in floating-point format, representing laser point cloud data, with each line in the file representing a different point record. Can use “3D ASCII File to Feature Class” to generate ArcGIS data.
17
.las
LAS files use an industry-standard binary format for storing airborne LiDAR data.
18
.sxd
ArcScene document file, needs to be saved as a relative path, has version issues.
19
.3dd
ArcGlobe document file, needs to be saved as a relative path, has version issues.
20
.sde
Extension name for ArcSDE connection files.
21
.tlb
.Net developed ArcGIS plugin, can be added through custom menu → custom mode → add file, has version issues.
22
.esriaddin
Extension name for ArcGIS add-in development.
23
.rul
Topology rule file for ArcGIS, loads rule files in topology, can directly use the same feature class name.
24
.exp
SQL for queries, saved during queries, can be directly used on next load.
25
.lxp
Label expressions saved during labeling, can be directly used on next load.
26
.gtf
Parameter files for converting between different coordinate systems.
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