What are CAD Files?

CAD stands for “Computer Aided Design” and files with this format are used to store 2D (drawings) or 3D designs (models). Generated by CAD-based software, they can be used to create a number of things, including models, architectural plans, and more.

Today, there is a multitude of CAD file formats in use for storing high-definition, multi-dimensional designs of objects as every CAD vendor tends to create their own proprietary file formats.

Popular CAD File Extensions


CAD File Types

File Database Breakdown - CAD File Extensions


Top CAD File Extensions

File Extension Total Number of Files Oldest File (Date) Latest File (Date)
CSG 2 apps.csg
(04/15/2016)
settings.csg
(04/15/2016)
ART 2 L1033.ART
(05/10/2017)
L1033.ART
(05/10/2017)
PRT 28 MAIL.PRT
(05/10/2017)
WEEK3.PRT
(05/10/2017)
HCP 1 StartTile.hcp
(03/18/2017)
StartTile.hcp
(03/18/2017)
OPT 39 XR4500DT.OPT
(09/18/2006)
XRXC2424.OPT
(09/18/2006)
CPA 6 iglhxa64.cpa
(09/29/2006)
iglhxa32.cpa
(06/02/2012)
MODEL 25 Url.model
(03/18/2017)
de-DE.PhoneNumber.SMS.model
(03/18/2017)
PCS 1 POPULAR.PCS
(05/10/2017)
POPULAR.PCS
(05/10/2017)
MKD 2 PfPre_f9cb4963.mkd
(04/24/2017)
PfPre_f9cc0f40.mkd
(04/24/2017)
PAT 2 WindowsMail.pat
(04/24/2017)
WindowsMail.pat
(04/24/2017)
BIT 5 dsbri2f.bit
(09/18/2006)
dspri331.bit
(09/18/2006)
UNT 7 M1033DSK.UNT
(09/18/2006)
M1033Zira.keyboard.UNT
(03/18/2017)
GDL 130 STDDTYPE.GDL
(01/21/2008)
STDDTYPE.GDL
(05/10/2017)
STL 8 driver.stl
(09/18/2006)
driver.stl
(03/18/2017)
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