First of all, IrScrutinizer does not crash, at least not the current version. It warns since some of the Pronto Hex is incorrect; the incorrect signals do not decode, but the other signals can be used.

I had a look at the file, and considered that it is probably not too dangerous to be "forgiving" for these errors. Try this version:
[Link: github.com]

Then you can export them into e.g. the irplus format that an Android app uses. This answers you second question.