.256 — Color bitmap image file
IBM · 1980s
A 256-color bitmap image format primarily used by legacy IBM graphics software and systems like the Amiga.
Key Features
- Stores 256-color bitmap images.
- Palette-based color representation.
- Primarily used on legacy IBM systems and Amiga.
- Often uses simple lossless compression.
Best For
- Maintaining compatibility with specific legacy software.
- Representing images with a strict 256-color palette.
- Archiving historical graphics data from older platforms.
Less Ideal For
- Modern web graphics.
- High-fidelity photography.
- Graphics requiring transparency (alpha channels).
- Animation or complex visual effects.
Common Use Cases
- Displaying graphics in older IBM PC or Amiga applications.
- Storing sprites or background images for retro games.
- Archiving visual assets from early computing environments.
- Representing simple, color-limited artwork.
How to Open It
- Use an advanced image editor like Adobe Photoshop with appropriate plugins.
- Try dedicated retro graphics software or emulators that support the format.
- Convert the file using online file converters, though success may vary.
- Seek out specific Amiga or IBM graphics viewing utilities if available.
What is a .256 file?
The .256 file extension typically refers to an image format used by older IBM graphics applications, particularly on systems like the Amiga. These files store color bitmap images, often limited to a palette of 256 colors. While once common for game graphics and basic imagery on these platforms, they are now largely obsolete and challenging to open without specialized software. They represent a piece of early computer graphics history but lack the features and compatibility of modern image formats.
Programs That Open .256 Files
| Platform | Program | ||
|---|---|---|---|
| Windows | IrfanView | Free | |
| XnView MP | Free | ||
| Adobe Photoshop | Paid | Official | |
| macOS | XnView MP | Free | |
| GIMP | Free | ||
| Linux | GIMP | Free | |
| ImageMagick | Free |
How to Convert .256 Files
| Format | Method |
|---|---|
| .PNG | IrfanView, XnView MP, GIMP, ImageMagick |
| .JPG | IrfanView, XnView MP, GIMP, ImageMagick |
Common Problems with .256 Files
Frequently Asked Questions
No, the .256 format is largely obsolete and primarily found in historical contexts or specific legacy applications.
Direct support is unlikely. You would typically need to convert the file to a more common format like PNG or JPG using a desktop application first.
.256 is typically a proprietary IBM format limited to 256 colors, whereas .BMP (Bitmap) is a more general Windows format that can support a wider range of color depths and compression methods.
Technical Details
This format is a raster image type, meaning it stores pixel data directly. It typically uses a palette-based color system, where each pixel's value is an index into a predefined 256-color palette. Compression, if used, is usually a simple run-length encoding (RLE) or similar lossless method. Its structure is proprietary to IBM's graphics systems of the era.