Two ways, you try.
First of all: find the place where the test data is archived and stored, usually on disk C.
Second: Open your software and check the previous data to see if it can still be displayed.
If not, you can only give up and reinstall the software.
I personally did a test, but if the subject has a mobile phone or a metal object, the test data is not accurate, so what I said may be different from your test instrument, for reference only.