As a Pitchero user, you can issue your own Subject Access Request by following the instructions outlined here.
As seen in Article 20 of GDPR: Pitchero provide your data in a .json file format.
JSON files provide information in a machine readable format which complies with GDPR's data portability clause in Article 20. JSON files allow you to transfer your information more easily to other services, as per GDPR requirements.
Once you have followed the instructions highlighted in the help article linked above and extracted the zip folder, you can open the JSON files using text reader software such as Notepad on Windows and TextEdit on Mac.
You can also view JSON files through dedicated JSON readers online. Simply type in 'JSON reader' into a search engine of your choice.