BLK File - opening and understanding

Did your computer fail to open a BLK file? We explain what they are used for and recommend software that we know can open or otherwise handle your .BLK files.

What is a BLK file?

BLK file extension is either an image/graphics file type or computer- aided design (CAD) file type used by Amiga Computers and Autodesk (through Alias products) in their extraction template files. These template files are necessary in creating project designs that are used in various CAD editing software. The BLK file extension format is also frequently used to store different project design, making the image file more flexible and easy to share. BLK files can be opened using various CAD- based executable image viewers.

Example of application that utilizes .blk is AutoCAD. AutoCAD is a 2D and 3D computer- aided design and documentation application that uses .blk file extension in storing selected drawing elements. BLK files are also used in publishing a drawing in .pdf, .dwf, or .dwfx format. It also specifically stores the drawing blocks and their properties which can be useful in starting new architectural projects.

Other applications that can view .blk files are Spectaculator ZX Spectrum Emulator and XnView, both of which are supported by Windows OS versions.

How to open BLK files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension BLK for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 10 different BLK openers which you will find listed below.

Suggest another file format using extension BLK

While we know of one file format using the .BLK file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .BLK file.

Various viewers for this file format

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

DocMasterDocMasterUser submitted
XnViewXnViewUser submitted
MysticThumbsMysticThumbsUser submitted
Spectaculator ZX Spectrum EmulatorSpectaculator ZX Spectrum EmulatorUser submitted
RDM TDB Control EditorRDM TDB Control EditorUser submitted
PulsonixPulsonixUser submitted
Belka FREEBelka FREEUser submitted
EQ7EQ7User submitted
GSGSUser submitted
We have not verified any software that we know for certain will work with BLK-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with BLK-files. If you know one, please use the 'Suggest a program' link below and tell us about it!