.cg4 files

I was sent some AutoCad drawings to work on. Some are .dwg format and some
are .cg4. Going to the Microsoft extension search did not help. Does anyone
know what program opens these .cg4 files?

Thanks

 

Perhaps you should ask whoever sent you the files.
___

 

When you send a fax, your fax machine creates a raster image file and
transmits the file. Your fax machine is a small scanner. Most fax machines
scan at 50 or 75 dpi. A raster image is "viewable" and "editable". The image
has no intelligent data, for example no text "fonts", no entities that can
be changed from "circle" to "arc" etc. Typical file formats include tif,
pcx, cg4, rle, rlc, tga. TIFF stands for Tagged Image File Format. CALS is
the Government version of TIFF. This can be a CAL extension, a CG4
extension, or a TG4 extension. Note most raster editing programs (Paint Shop
Pro, Adobe Photoshop, Harvard Graphics etc. have size and/or pixel
limitations for display/editing. If your drawing is larger than 11x17" you
may not be able to use the aforementioned programs without great
difficulty( if at all) to edit your raster files.

Neutral Formats Extension
Portable Document Format PDF
Informative Graphics Content Sealed Format CSF

CAD Formats
Extension

000 HPGL Plot File
000

906/907 Plot File
906/907

AutoCAD Drawing (versions R12 - 2005)
DWG

AutoCAD DXF (versions R12 - 2005)
DXF

AutoCAD Web Format
DWF

Auto-trol Raster
DX

Auto-trol Vector
DG

CADKEY
PRT

CAD Overlay
RLC

Computer Graphics Metafile
CGM

EDMICS
EDM

GTX Group III, IV
G3, G4, CG4

GTX Runlength
RNL

HP CAD ME10 (through version 10)
CMI, MI

HPGL Plot File
PLT

IGES (2D) (version 5.2)
IGS, IGES

Inventor (2D) (versions 5.3, 60) (requires Design Tracker) IDW
MicroStation Drawing (through version 8.0)
DGN

MicroStation Group IV
CIT

MicroStation Runlength
RLE

MYRIAD 3D View Sets
MVS

OrCad
DSN

Solid Edge Drawings (2D) (Versions 8 - 14) DFT
SolidWorks Drawings (2D) (versions 2003, 2001, 2000, 98, 97)
SLDDRW

Wavesoft
MOT


Imaging Formats Extension
CALS (Group IV)
CAL, CG4, GP4, MIL

DCX (multipage)
DCX

EDCARS
EDC

Formtek Raster
FTK

ISO 8613/CALS
ISO, CAL

JPEG Compressed Image
JPG, JPEG

PC Paintbrush
PCX

Portable Network Graphic PNG
Raytheon G4 / Navy DIF
DIF

Tagged Image File
TIF, TIFF

Windows Bitmap
BMP


Additional Document and Image Formats Extension
Corel Draw CDR
Corel Presentations SHW
DataBase Formats DBF
DocuWorks XDW
Excel XLS
FAX CITT Group 3 Fax FAX
Hyper Text Markup Language HTML, HTM
Microsoft Excel WK1, WK3
Microsoft PowerPoint PPS, PPT
Microsoft Project MPP
Microsoft Visio VSD
Microsoft Word DOC
Microsoft Works WDB
PageMaker P65
QuattroPro WB1, WB2, WQ1
Rich Text Format RTF
Samna Word SAM
Windows Write WRI
WordPerfect WP5, WP6, WPD, WPF
WordStar WS

 

Thank you very much for the detailed response. It is truly appreciated.

John Webb