connected spark to assistant 2 on pc with windows 10. I cant see how to get flight data and photos I have taken

You don't need/use Assistant to retrieve your photos.  Take the SD card out of the Spark and directly read it with your PC.  You will see your photos and videos there.
Flight Log info can be found here:
https://forum.dji.com/thread-114810-1-1.html
and here:

https://www.phantomhelp.com/LogViewer/Upload/

when the spark is connected to assistant 2, I dont see 'flight data' or 'calibration' on the left side of the app

munrob7 Posted at 1-23 22:07
when the spark is connected to assistant 2, I dont see 'flight data' or 'calibration' on the left side of the app

can you send us a screenshot?

munrob7 Posted at 1-23 22:07
when the spark is connected to assistant 2, I dont see 'flight data' or 'calibration' on the left side of the app

You should use DJI GO4 ---> Me --> Flight Record and use the 'cloud' from the right top corner to sync the flight records.

Hi, thanks for the inquiry. The photos and videos that you've taken are located on the app and sd card. if you want to analyze your flight data, you may refer to the link below. Please take note that the files in the application are only cache files which means that the quality is on low condition. Calibration on the DJI Assistant 2 for Spark is not available. If you have other concern, kindly inform us for further assistance. Thank you fro continued support.

https://forum.dji.com/thread-114810-1-1.html