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BLK File

What are BLK files and how to open them

Are you having problems opening a BLK 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 BLK files.

What is a BLK file?

BLK files have multiple uses, and AutoCAD Block Template is one of them. Read more about the other uses further down the page.

AutoCAD Block Template File

These files contain block templates for use when exporting a project in AutoCAD. AutoCAD is a 2D and 3D Computer-Aided Design (CAD) software. Project data can be exported into different formats, and block templates define the export properties of each block, like which blocks must be included in each output format.

How to open BLK files

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

Programs that open AutoCAD Block Template files


Last updated: September 27, 2023

All known file formats using extension .BLK

While AutoCAD Block Template File is a popular type of BLK-file, we know of 4 different uses of the .BLK file extension. Different software may use files with the same extension for different types of data.

Lightscape Block

We know that one BLK format is Lightscape Block. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

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

Quilt Block File

Quilt-Pro is a quilt design software that enabled you to draw pieced quilt blocks, applique blocks, quilting stencils, and foundation blocks.

BLK opener for Windows

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


Sequencer One Audio Block File

Sequencer One is an audio sequencer by Gajits Music Software, made for the Commodore Amiga home computer.

Various apps that use files with this extension

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
Electric QuiltElectric QuiltUser submitted
GSGSUser submitted

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about BLK file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.