It looks like the 80/20 workout library also includes .fit files if you want some more to test
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it looks like you only can get a .zwo file when the workout is powerbased, when the workout as in my case is hr-based running then i only have a .fit
Intervals.icu can now import workouts from fit files. I am working on exporting workouts as fit files to complete the loop and then I will do an announcement.
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Will this include exporting completed activities as fit files also? 
Well its quite the same work but I am going to do that soon.
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It would be such a good feature once implemented - thanks!
works great, thx, imported hr based running fit file! 
ooops, there goes something wrong, at the end of the workout there is a longer duration added (a possible extra 10min cooldown?):
my bike training for today is 0:43:40 on TP
imported FIT file on intervals.icu shows 53 minutes:
you need the .FIT file?
That is a step with no distance or duration just OPEN with no target power etc… Intervals.icu likes every step to have a duration or distance so I turn those into 10m Z1 using whatever target the rest of the workout uses (power/HR/pace).
I could just drop it if it is the last step?
if it would be easy, then without this step, otherwise you don’t reach your goal of 100%, but no problem when it isn’t easy, anyway thanks for the fast implementation
Tx. I already deployed an update to leave the last step out if it is OPEN. Looks like TP always tacks that on.
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For some reason cannot import any FIT file to intervals.icu.
Are you trying to import a workout or an activity?
For some reason automatically synchronized activity was containing inaccurate data. I deleted the activity and tried to import it as .fit file again.
No success so far.
For activity files you have to use the Upload button on the calendar page.
If the file is not accepted by Intervals, first try to open the file on fitfileviewer.com to check if it is readable.
If it is, send the file to david for inspection. He will check why it isn’t importing in Intervals.
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It works! Thanks for support.
P. S. After re- check I found same data inaccuracy issue.
I tried to re-import a FIT workout File (which was exported directly from intervals.icu) and it failed for
This is the workout file, I just did a “download → FIT” then tried to re-import it
I have a user who is trying to import FIT workout files (from TP i think) and I’m researching how to support these sort of files from Dropbox.
You need to import workouts into a folder in your training library or over an existing workout from the edit dialog:
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Got it. Thanks. Now I know how to import workouts. Silly me thought its the same process as uploading an activity.
Additional question…
This is the workout exported from intervals.icu
This is the result. (of above workout exported from intervals.icu)
I think the reason for the Exported FIT file to look like that is that Garmin isn’t able to handle RAMP steps? And fixed Power (eg: 80%) are converted to a +/-3w range…
Wow… it’s gonna be some amount of work to parse FIT files and get the app to be able to play nice. I wonder how Garmin is able to control Trainers using ERG mode w/ +/-3W Power Ranges… Likely it just sends the actual power target and uses the +/-3w for “out of power range” visual alerts.
Tx
When you export a workout as a fit file Intervals.icu uses ranges power for outdoor rides (no for indoor) and ranges for HR targets because it is hard to hit an exact HR number.
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