iGS10S had no feature to connect with computers for uploading data .
It can upload data to iGPSPORT APP, which is much more convenient.
If you need to backup the fit files you may need to download the files at the steps below:
1. Upload the data to iGPSPORT app or web APP.
2. Enter the account at the webpage https://i.igpsport.com/profile/Dashboard
3. Choose one activity and download the file onto your computer.