Open PIKA File

It's important to note that as of my current knowledge, there isn't any official file extension named .pika. This means that I won't be able to provide any accurate or credible information regarding formats and methods to open or use .pika files. I would advise you to double-check if it's correctly spelled or whether you might have misconstrued file format information from a different source. I apologize for any confusion and remain at your service for further inquiries.