No longer able to edit the zwo files for custom workouts directly

Since I have somewhat complex workouts, I’ve resorted to editing the .zwo files directly so I can easily create my workouts. I do this on Windows, so after creating the workout in the application I just edit the workout file within Documents folder to add the relevant repeats and steps in the file itself. After loading the workout again within the app, this would result in the correct workout appearing on Zwift.

It seems that with the last update, this no longer works. I now noticed a file within the directory, which I did not notice before, that contains the list of all workouts, where it includes a checksum field for each workout along with some other data.

My guess is that the Zwift app is now actively ignoring files that are edited, because they don’t match the checksum field within that file, that registers all the workouts.

Any chance we could get this behaviour of freely updating the zwo files back? Or, if my guess is correct, share the checksum function so I can at least edit the checksum value manually?

This is a big deal because it saves a lot of time for any tech-savvy user. Hopefully we can get this back working again instead of wasting considerable time dragging things in the interface.


Hi @Jose_Gomes welcome to Zwift forums.

Would you take a screenshot of what you’re seeing please? We’re not clear on what you’re seeing vs what you expect to see.