BI

bi icon

Progress database before image

File type: Various data file

Files with bi file extension are mainly related to Progress 4GL programming language.

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

What is bi file?

File type category:
Various data file

Date updated: October 25, 2017

The bi file extension is mainly related to Progress 4GL, a programming language used to create Progress-based applications. It is now known as OpenEdge Advanced Business Language.

These bi files contains some sort of database.

Suggested software to open bi file:

Associated software actions with the bi file

Software applications that handle other tasks involving bi files:

Microsoft Windows

Bohemia Interactive addon signature file

File type category:
Settings, options, themes or skins file

Date updated: October 2, 2026

Bohemia Interactive uses BI files with addons for games such as ArmA: Armed Assault. The file contains signature information associated with the addon rather than the addon content itself.

When the game loads a signed modification, it can use the signature to verify the addon and support servers that restrict unauthorized or modified addons. These signatures help prevent cheating in game modifications. The BI file is therefore normally kept with the corresponding addon files.

This format belongs to the Windows version of ArmA: Armed Assault and related Bohemia Interactive mod content. It is a game-specific format rather than a general-purpose document format.

How to open bi file?

A BI file is not intended to be opened as a document. Place it with the corresponding ArmA addon files and let ArmA: Armed Assault or the relevant Bohemia Interactive game read it.

On Microsoft Windows, the file can be managed with normal file-management tools, but changing its contents can make the addon signature invalid.

How to convert bi file?

BI files cannot be meaningfully converted to another format. The signature is tied to a particular addon and is used for verification.

If an addon is changed, its signature must be generated again with the appropriate Bohemia Interactive addon-signing tools rather than converted.

Suggested software to open bi file:

Associated software actions with the bi file

Software apps that manage or store settings in bi files:

Microsoft Windows

Microsoft Visual Basic for DOS include data

File type category:
Source code and script file

Date updated: April 11, 2019

Record marked as obsolete and not updated for a long time.

The bi file extension was also used in DOS versions of Microsoft Quick Basic or Visual Basic for its include files. Probably no longer used or supported. No further information could be found.

Suggested software to open bi file:

Associated software actions with the bi file

Software apps that create bi files:

Microsoft Windows

Software applications that handle other tasks involving bi files:

Microsoft Windows

Related file extensions