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AutoCAD opens documents with DWG compatibility as a "DWG file format version code" where the specific version code can be found by opening the .dwg file in Windows Notepad or any text editor program. The file contents starts with this string. The file format version code (tag) is dependent on the AutoCAD version. [2]
A man using AutoCAD 2.6 to digitize a drawing of a school building. AutoCAD was derived from a program that began in 1977, and then released in 1979 [5] called Interact CAD, [6] [7] [8] also referred to in early Autodesk documents as MicroCAD, which was written prior to Autodesk's (then Marinchip Software Partners) formation by Autodesk cofounder Michael Riddle.
The .ZIP file format was designed by Phil Katz of PKWARE and Gary Conway of Infinity Design Concepts. The format was created after Systems Enhancement Associates (SEA) filed a lawsuit against PKWARE claiming that the latter's archiving products, named PKARC, were derivatives of SEA's ARC archiving system. [3]
FreeCAD's own main file format is FreeCAD Standard file format (.FCStd). [9] It is a standard zip file that holds files in a certain structure. [9] The Document.xml file has all geometric and parametric objects definitions. [9]
ABViewer is a software application for 2D/3D computer-aided design (CAD) developed by CADSoftTools in 2003. Its main features are viewing, editing, creating, converting, and printing CAD files.
AutoCAD DXF import/export support Sep 1991 [4] 2: 1, 2: 1, 2: Windows 3.0: Envelope tool (for distorting text or objects using a primary shape), Blend (for morphing shapes), Extrusion (for simulating perspective and volume in objects) and Perspective (to distort objects along X and Y axes). CorelDraw for Unix also became available. [5] [6] 15 ...
T-FLEX CAD (T-FLEX) – is a parametric computer-aided design (CAD) software application for 2D design, drafting, and 3D solid modeling based on commercial Parasolid geometric kernel. [1]
RARlab's native software is available for Microsoft Windows (named WinRAR), Linux, FreeBSD, macOS, and Android; archive extraction is supported natively in ChromeOS.WinRAR and RAR for Android support the graphical user interface (GUI); other versions named RAR run as console commands.