GPX files with accelerometer

Hi,

Does anyone have a GPX file that contains accelerometer data and is compatible with Virb Edit? It seems like the Virb Elite camera used to produce them, but I can't find any sample anywhere.

What I'm trying to do is to enable acceleration support for my app that converts GoPro telemetry into files that Virb Edit can use.

For now I just include GPS data, but it would be nice to support other data streams (without getting into .FIT file creation if possible).

Thanks