CWA File

What are CWA files and how to open them

Are you having problems opening a CWA 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 CWA files.

What is a CWA file?

CWA files have multiple uses, and C-Worthy Form is one of them. Read more about the other uses further down the page.

C-Worthy Form

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open CWA files

Important: Different programs may use files with the CWA file extension for different purposes, so unless you are sure which format your CWA file is, you may need to try a few different programs.

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

Last updated: September 19, 2026

All known file formats using extension .CWA

While C-Worthy Form is a popular type of CWA-file, we know of 2 different uses of the .CWA file extension. Different software may use files with the same extension for different types of data.

Continuous Wave Accelerometry Data

Continuous Wave Accelerometry Data files hold raw accelerometer readings recorded by Axivity devices such as the AX3 (and, when configured, AX6), used for physical activity monitoring and movement research. The files are produced in binary "packed" or "unpacked" mode depending on configuration, and preserve the sensor's internal sampling pattern so that post-processing (e.g. resampling, filtering, calibration) can reconstruct accurate motion data.

Recording begins on the device, which logs triaxial accelerations (and optional gyroscope / magnetometer data when using AX6 hardware) into large buffers in flash storage. A real-time clock timestamped header in the data file stores device metadata: session identifier, device ID, firmware version, sensor configuration, measurement start/stop times, and sampling rate settings. Data blocks follow in aligned sectors, each containing fixed-length packets with sequence numbers, timestamps, raw sensor samples, and checksums for integrity. Researchers typically export or convert these files using Axivity's OMGUI tools, or open-source utilities like omconvert or R packages (e.g. GGIR), into CSV, WAV, or epoch-summarised formats.

Continuous Wave Accelerometry Data files are especially good for studies needing precise time‐series motion data over long durations (hours to days). The timestamping allows correcting for slight variations from the nominal sampling rate that the device hardware exhibits. Because data are packed tightly, files are efficient on storage but require specialised software to read, export, or visualise.

Various apps that use files with this extension

These apps are known to open certain types of CWA files. Remember, different programs may use CWA 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 CWA file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.