CWP File

What are CWP files and how to open them

Are you having problems opening a CWP 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 CWP files.

What is a CWP file?

CWP files have multiple uses, and ComicStudio Print is one of them. Read more about the other uses further down the page.

ComicStudio Print File

Clip Studio Paint is a Japanese drawing program mainly used by illustrators, manga artists, and animation studios. When exporting page layouts for printing, they are saved with file extension CWP.

How to open CWP files

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

Programs that open ComicStudio Print files

Last updated: September 21, 2026

All known file formats using extension .CWP

While ComicStudio Print File is a popular type of CWP-file, we know of 3 different uses of the .CWP file extension. Different software may use files with the same extension for different types of data.

Cakewalk SONAR Project

The Cakewalk SONAR Project file with extension .CWP is a project file created by the SONAR digital audio workstation (DAW) from Cakewalk. It stores a working project including settings, MIDI information, automation, mix setups, and references to digital audio used in the project. It is meant for editing, arranging, mixing, and saving progress while producing music or sound, not for delivering final mixed audio by itself.

When using SONAR, a .CWP is written whenever you save your project under the "Normal (Project file)" type. Audio data files are stored separately rather than embedded in the .CWP unless you use a Bundle (.CWB) or ZIP (.CWZ) format which packages audio together. Projects typically consist of multiple tracks made up of clips and events; the .CWP file tracks how they are arranged, what effects and instruments are used, tempo and project metadata.

Inside a .CWP file are recognizable byte signatures that identify it as a SONAR project. For example at offset 24 there are ASCII bytes for "Cakewalk" and around offset 33 the ASCII "SONAR" signature appears. The file also contains key strings like WINDOWINSTANCEDATA, FILESTATS, CAKEWALK, and SONAR.

CWP opener for Windows

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

Philips Home Office 2 Word Processor Document

Philips Home Office 2 Word Processor Documents are text documents created by Philips' Home Office 2, a word processor module included in the Home Office 2 productivity package for MSX2 home computers, released in 1986. These documents store formatted text produced via the word processing tool, including layout features such as margins and line breaks, as supported by the Home Office 2 program.

Home Office 2 runs under MSX-DOS on MSX2 machines (such as the VG-8235 and NMS-series), using floppy disks or ROM cartridge media as storage. The word processor allows creation, editing, printing, and saving of documents. Saved files are intended only to be re-opened in Home Office 2; they are not plain ASCII text, but contain internal formatting codes and metadata that the program uses to manage document layout and printing.

These document files begin with a specific byte signature: at offset zero they contain the ASCII characters "CWP\" (bytes 0x43 0x57 0x50 0x5C) followed by a zero byte, and at offset 8 there is a carriage return-linefeed pair (bytes 0x0D 0x0A). This signature identifies them as Home Office 2 Word Processor Documents.

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

Various apps that use files with this extension

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

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 CWP file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.