Visual Studio 2019 Visual Basic

I am not an excellent programmer, but I am using a website where I want to import trips done with my bicycle and exported as a fit.file. After that I want to read the fit.file with the help of the fit sdk and import some of the information into a sql database. I am doing the same already with an excel file.

But my current problem is to start using the fit sdk because I am using  VB instead of C#. Therefore I wanted to use JavaScript.

I need help to get started with my approach. Currently I am already able to store the file on my webserver. Now I want to read it and show the content in a textbox for example. 

Maybe there is somebody who can guide me a little bit.

https://unsertrainingstagebuch.de/Default.aspx Brägel/brägel 

The next step would be to import the relevant information to the database.