BL3 file format description

Many people share .bl3 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .bl3 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .bl3 files.

1 filename extension(s) found in our database.

.bl1 - Atari ST DEGAS Elite Block

The BL1 graphic files are related to Recoil. The BL1 file is an Atari ST DEGAS Elite Block. The Atari ST is a line of home computers from Atari Corporation and the successor to the Atari 8-bit family.

Graphic files
- / -
bl2, bl3
Atari ST DEGAS Elite Block related extensions:
Commodore 64 8x8 Font Data
Commodore 64 SEUCK Sprite Image
Atari 8-bit Anime 4ever Image
Commodore Amiga AMOS Bitmap
Commodore Amiga Continuous Bitmap Image
Commodore 64 AFLI-editor Image

Naturally, other applications may also use the .bl3 file extension. Even harmful programs can create .bl3 files. Be especially cautious with .bl3 files coming from an unknown source!

Can't open a .bl3 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 .bl3 file extension is often given incorrectly!

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

b3, bk3, bl, ble, blr, blw, bm3, bo3, bp3, fl3, l3

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Biacore BIAlite Project Data
SmartWare Project Backup
ArcGIS BIL World File
Binary Linework TIFF Image
Minecraft BO3 Object
Corel WordPerfect Document Backup

Operating systems 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

If you find the information on this page useful, please feel free to link to this page.

If you have useful information about the .bl3 file format, then write to us! >> BL3 file