.FIT File

File extension fit is also associated with the Garmin Training Center, a tool for Windows and Mac OS X (macOS) that allows users to track and analyze their physical activity.

This type of fit file stores user's physical activity history (running, cycling, etc.) and locations. Files can be also uploaded to Garmin Connect Web on-line service.

Files with fit file extension can be usually found by users of Garmin Training Center. These are used for activity files that contain logged user's physical activity.

How to open:

Use Garmin Training Center to open *.fit activity files.

How to convert:

It may be possible to export .fit logs to TCX format for data exchange purposes.