OPB file format description

Many people share .opb files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .opb file can be edited, converted or printed with. On this page, we try to provide assistance for handling .opb files.

2 filename extension(s) found in our database.

.opb - Gurobi Optimizer Pseudo-boolean Optimization Data

The OPB data files are related to Gurobi Optimizer. The OPB file is a Gurobi Optimizer Pseudo-boolean Optimization Data. The Gurobi Optimizer is a commercial optimization solver for linear programming (LP), quadratic programming (QP), quadratically constrained programming (QCP), mixed integer linear programming (MILP), mixed-integer quadratic programming (MIQP), and mixed-integer quadratically constrained programming (MIQCP).

Gurobi Optimizer
Data files
- / -
Gurobi Optimizer Pseudo-boolean Optimization Data related extensions:
OpenSSL S/MIME Format Message
MicroSim PCBoard Package Library
Across DisplayText XML Data
eDictionary Reader Dictionary Data
Android Update Data

.opb - Bryce Object Data

The OPB data files are related to DAZ 3D Bryce. The OPB file is a Bryce Object Data. DAZ 3D Bryce is a 3D modeling and animation package designed to allow new users to quickly create and render stunning 3D environments.

DAZ 3D Bryce
Data files
- / -
Bryce Object Data related extensions:
Tableau Data Source
Adobe Production Studio Data
Binary Counterpart Data
WRAP Tables Output Data
Autodesk Simulation Mechanical DDAM Statistics Data

Naturally, other applications may also use the .opb file extension. Even harmful programs can create .opb files. Be especially cautious with .opb files coming from an unknown source!

Can't open a .opb 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 can't open this file:


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 one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .opb file extension is often given incorrectly!

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

ipb, kpb, lpb, ob, obp, olb, oob, op, opf, opg, opn, opv, pb, pob, ppb

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Cadence OrCAD Binary Library Database
Obsidium Project File
Apple iOS Perl Script
TensorFlow Model
OpenG Package File
Open Electronic Package Ebook

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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DataTypes.net >> OPB file