There are 8 other file types using
the DDF file extension!

empty icon.ddf - Bitstream Fontware data

empty icon.ddf - Spatial Data Transfer Standard and GRASS formats

ddf icon.ddf - Diamond directive file

empty icon.ddf - Doom definition data

empty icon.ddf - GPS Pathfinder Office data dictionary

empty icon.ddf - Grand Theft Auto III game file

empty icon.ddf - ProWORX descriptor data

empty icon.ddf - SDTS topological vector profile

Bookmark & share this page with others:

DDF file extension - Data definition

What is ddf file? How to open ddf files?

File type specification:

Various data file type icon Various data file type

The ddf file extension is used for so called data definition files. These files were or still are in use in many different database management systems as well as other software programs.

The ddf file generally contains metadata for a database. Probably different formats, just same DDF file extension.

Updated: October 31, 2018

The default software associated to open ddf file:

Act! picture or screenshot

The Sage Group plc logoAct!  Microsoft Windows software

Company or developer:
The Sage Group plc

Act! is contact and customer manager that helps you organize contact information, manage daily responsibilities, and communicate more effectively. The latest version is 17.

Help how to open:

Probably not meant to be accessed by the user.

How to convert:

Probably cannot be converted to anything else.

List of recommended software applications associated to the .ddf file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open ddf file, edit ddf file, convert ddf file, view ddf file, play ddf file etc. (if exist software for corresponding action in File-Extensions.org's database).

Unspecified and all other actions for computer programs working with ddf file - Data definition

Click on the software link for more information about Act!. Act! uses ddf file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).

Microsoft Windows:

Main software associated with ddf file by default:
Act!
Other suggested software:
ACDSee Classic small icon ACDSee Classic
Sage MAS 90 small icon Sage MAS 90
Btrieve

Previous file extension
DDF file extension

File-Extensions.org > Various data file types

Next file extension
file extension DDG

 

Follow us!

Enter any file extension without dot (e.g. pdf)
Search for file extension details and associated application(s)

RSS feed