tcx2hrm, a tool for converting files recorded from Garmin GPS devices into Polar compatible data files, has been released recently. Checkout the new blog pages, specifically dedicated to the tcx2hrm tool.
While .TCX files are XML encoded, Polar uses for their .HRM specification simple oldstyle text files following a complicated structure. Furthermore the differences are not restricted on the file structure only, but also on the information stored within.
However, HRM files are broadly supported by nearly all application vendors in the training software area. And don’t worry, tcx2hrm takes care for an accurate, fast and reliable conversion of your TCX files.