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DF4 file extension

The table below provides useful information about the .df4 file extension. It answers questions such as:

  • What is the .df4 file?
  • What program do I need to open a .df4 file?
  • How can the .df4 file be opened, edited or printed?
  • How can I convert .df4 files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Omnis Studio Database File

DF4 file is an Omnis Studio Database File. Omnis Studio is a rapid application development (RAD) tool that allows programmers and application developers to create enterprise, web, and mobile applications for Windows, Linux, and Mac OS X personal computers and servers across all business sectors.
DF4 format description not yet available
Application: Omnis Studio
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
DF4 aliases:
DF4 related links:
DF4 related extensions:
Omnis Studio Data File

Omnis Application Library

Omnis Library

Omnis Native Data File

Omnis Studio Ad hoc Report

Omnis Studio v7 Database

Omnis Studio Database

Omnis Studio Header

Omnis Studio v6 Database

Other types of files may also use the .df4 file extension.

🚫 The .df4 file extension is often given incorrectly!

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

d4, db4, dc4, df, dfr, dft, dr4, dt4, dv4, f4, rf4, wf4

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Gigabyte BIOS Update
Dataphor Source Code
Fortran IV Source Code
SmartWare Transact Definition File
Lightscape Parameter File
Titan Showfile
SmartWare Communications Runtime Project
EES Default Information
DataFlex Registration Data
dBASE IV Database

🔴 Can't open a .df4 file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .df4 file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .df4 file extension, write to us!

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