I studied training sessions about the field of Big Data by extracurricular activities.
Hi there, Could you please review this to see if it makes sense?

I studied training sessions about the field of Big Data by my extracurricular activities.

Thank you for your help!

Question

I studied training sessions about the field of Big Data by extracurricular activities.
Hi there, Could you please review this to see if it makes sense?

I studied training sessions about the field of Big Data by my extracurricular activities.

Thank you for your help!

Answer

I'd say either of the following:

Formal: 
I took training in the Big Data field as an extracurricular activity.

Informal: 
I did some training in Big Data as an extracurricular activity.

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