Files with cwk extension can be also found as some kind of data files from GCPrevue graphical CAM program.
There are 2 other file types using
the CWK file extension!
.cwk - ClarisWorks document
.cwk - CattleMax data
Detailed description
Software that open cwk file
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What is cwk file? How to open cwk files?
File extension cwk is also used for work files from GCPrevue program from GraphiCode. GC-PowerPlace is graphical CAM software for captive and contract PCB manufacturers.
The default software associated to open cwk file:

GC-Prevue 
Company or developer:
GraphiCode
GC-Prevue is an inexpensive Gerber translator and editor from GraphiCode.
Help how to open:
You can work with these files using GCPrevue.
How to convert:
Unfortunately, we have no information about any possible conversion for this particular type of .cwk files.
List of software applications associated to the .cwk file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open cwk file, edit cwk file, convert cwk file, view cwk file, play cwk file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting cwk files.
Software that open cwk file - GCPrevue work file
Programs supporting the exension cwk on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about GC-Prevue for open cwk file action.
cwk file editor and apps that can edit cwk file - GCPrevue work file
Programs supporting the exension cwk on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about GC-Prevue for edit cwk file action.
Programs that can create cwk file - GCPrevue work file
Programs supporting the exension cwk on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about GC-Prevue for create cwk file action.
Unspecified and all other actions for computer programs working with cwk file - GCPrevue work file
Click on the software link for more information about GC-Prevue. GC-Prevue uses cwk file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).
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