ICB File

What are ICB files and how to open them

Are you having problems opening an ICB file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your ICB files.

What is an ICB file?

An .ICB file is an AT&T EPICenter ICB Frame Grabber Image file.

The AT&T EPICenter ICB Frame Grabber Image File is a raster image format produced by the ICB (Image Capture Board) hardware designed by AT&T's EPICenter division. These files come from video‐frame grabbers or similar image‐capture cards used for acquiring still images directly from video output. They serve to store single frames captured by the board, typically for inspection, processing or editing later.

Files in this format are written by the ICB frame graber board (or by software driving that board, such as ICB-Paint or TARGA-Paint) and are meant to be read by image-editing tools or display utilities that support "Targa ICB" bitmaps. The data inside is arranged like Targa-format bitmaps, with perhaps additional board-specific metadata in some files.

Technically this format follows the early TGA (Truevision Targa) structure as developed around 1984 for AT&T EPICenter's first frame buffer and image capture boards. It includes fields for image width, height, pixel depth, origin, and optional color map. The extension ".icb" was used to distinguish the files generated with the Image Capture Board hardware, compared to other board formats.

How to open ICB files

We have identified one ICB opener that is compatible with this specific type of ICB file.

Programs that open AT&T EPICenter ICB Frame Grabber Image files

Last updated: August 7, 2026

Various apps that use files with this extension

These apps are known to open certain types of ICB files. Remember, different programs may use ICB files for different purposes, so you may need to try out a few of them to be able to open your specific file.

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