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.FIT File Extension

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File TypeGarmin Activity File

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CategoryGIS Files


This file is saved in a binary format, which requires a specific program to read its contents.


File used by Garmin GPS sport devices and Garmin software; contains location and time information logged on the GPS device during a run, bike race, or other athletic event; can be uploaded to the Garmin Connect Web service for personal fitness tracking.

More Information

FIT files allow users to track their physical activities over time. For example, users can upload data to Garmin Connect each time they run and review traveled paths on a map and the total distance, duration, and burned calories for each activity.

NOTE: The FIT format is similar to the .TCX format.

Programs that open FIT files
Garmin Training Center
Garmin Training Center
Garmin Connect
Updated 9/20/2011