What is csv file and timestamp,energy

Question

Today i was looking over my mobile phone's gmail's sent section and there i saw something that i didn't i send this to anyone. It was like:

Calibration Data - <device name>

and then some data related to my device something like CSV files where the data that has been sent is timestamp, energy and those file are of zip format.

there were two files name
session OP
calibration OP

so what are these things?

Answer 1

@Martin Tylor So is it common for a phone to send this data to someone else?