What is .symbol files in IPA

I've IPA which is uploaded on AppStore. On unzipping IPA I see two folders Payload and Symbols.

Symbols folder contains many files with extension .symbol

Any idea what would be these symbol files? Can we use them for symbolication?

Yes, it is debug symbols. They contain a mapping between encoded names and locations in your compiled code and the original function names among other debug information. Each <UUID>.symbols file represents either the main binary of you app or a framework that your app is using. You can find out which is which using mdfind (see example).

See this about symbolication