OCC

occ icon

DB/TextWorks Terms and Words database

File type: Database file

Files with occ file extension are Terms and Words database files used by DB/TextWorks.

An occ file contains the text and words data used by the software.

Found 3 different file type records with the same occ filename suffix.

What is occ file?

File type category:
Database file

Date updated: November 6, 2026

The occ file extension is associated with DB/TextWorks, a database and text-retrieval application from Inmagic for Microsoft Windows.

An occ file stores the Terms and Words database used by DB/TextWorks. It belongs to the software's database environment rather than being a general-purpose text or word-processing file.

How to open occ file?

Open an occ file with DB/TextWorks on Microsoft Windows. The file is intended to be used within the application rather than opened as a standalone document.

How to convert occ file?

To move the contents of an occ file to another format, open it in DB/TextWorks and use the application's available export functions.

Technical details

File signature
HEX 4F 43 43 20 30 30 35 20
ASCII OCC 005

Suggested software to open occ file:

Associated software actions with the occ file

Software applications that can open occ files:

Microsoft Windows

Software apps that create occ files:

Microsoft Windows

Software applications that handle other tasks involving occ files:

Microsoft Windows

Battlefield occluder file

File type category:
3d graphics, CAD-CAM-CAE file

Date updated: October 2, 2026

The OCC file extension is associated with Battlefield 2, a Windows action computer game developed by EA.

An .occ file stores 3D occluder data used by the game's graphics system. Occluders help the game avoid rendering objects that are not visible from the current viewpoint.

The files form part of Battlefield 2's game data rather than being general-purpose 3D model files. They can also be examined with BfMeshView on Microsoft Windows.

How to open occ file?

On Microsoft Windows, an .occ file can be opened or inspected with BfMeshView. The file is also used internally by Battlefield 2 as part of its game data.

Battlefield 2 normally loads the file automatically from its installed game data.

Suggested software to open occ file:

Associated software actions with the occ file

Programs for viewing occ files:

Microsoft Windows

Software applications that handle other tasks involving occ files:

Microsoft Windows

OptControlCentre model file

File type category:
Graphics file

Date updated: October 27, 2017

The occ file extension is associated with the OptControlCentre suite for the optimization of dynamic systems in energy and chemical engineering. The .occ file stores model created in the OptControlCentre.

Suggested software to open occ file:

Associated software actions with the occ file

Software applications that handle other tasks involving occ files:

Microsoft Windows

Related file extensions