Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .dr4

1 extension(s) and 1 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .dr4 file?
  • Which program can create the .dr4 file?
  • Where can you find a description of the .dr4 format?
  • What can convert .dr4 files to a different format?
  • Which MIME-type is associated with the .dr4 extension?
AllyCAD Drawing Document .dr4 file icon

AllyCAD Drawing Document

DR4 file is an AllyCAD Drawing Document. AllyCAD is a CAD software application for 2D and 3D design and drafting, developed and sold by Knowledge Base.
Category: Document files
Application: AllyCAD
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Nicolet 5DX Data .dr1 file icon

Nicolet 5DX Data

DR1 file is a Nicolet 5DX FTIR Spectrometer Data. Nicolet 5DX is an FTIR spectrometer.
Detailed description not available
Category: Data files
Application: Spectragryph
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
dr2, dr3, dr4, dr5
Related extensions:
Nicolet OMNIC Data
Nicolet OMNIC Library
LabCognition Panorama Project
LabCognition Panorama Data
LabCognition Panorama Library
Andor SIF Data
Nicolet OMNIC LBT Library

Other types of files may also use the .dr4 file extension. If you have helpful information about .dr4 extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

Dataphor Source Code
Commodore Amiga Multi-palette Image
PSpice Custom Derating
Titan Showfile
BioSonics DT-X Data
Omnis Studio Database File
Fractal Explorer Quaternion Spot
OMA DRM Rights Object XML
SIR Procedure Definitions Data

The .dr4 filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

d4 (1), fr4 (1), drt (1), dre (1), df4 (1), sr4 (1), dt4 (1), drr (1), dr (1)

Can't open a .dr4 file?

If you want to open a .dr4 file on your computer, you just need to have the appropriate program installed. If the .dr4 association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.dr4

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android

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