It might be an outdated, fan-made, or unofficial patch for a game or tool named "Ymir," or it could be a mislabeled archive containing malware.

Is it supposed to be a ?

did you see this file name? (e.g., a forum post, a file-sharing site)

Knowing where this came from will help determine if it's safe and what it's for. Ymir vs KFS Vestmannaeyjar Prediction,H2H Results - AiScore