I've tried to open in PolarViewer HRM file, downloaded some other polar-compatible software.
Content of this file satisfys HRM format standard.
but PolarViewer cant open this file - failed to read message
I can drop this HRM on email.
what's the error message on the console?
With which tool have you created the HRM file? It should work when it was the Polar software for Windows.
Please attach or send me this file if it is was from the Polar software and it doesn't work.