If you were not expecting this file, delete it.

To give you a better idea of what this file does, could you tell me:

Use a reputable tool to extract the contents into a dedicated folder to avoid cluttering your desktop.

did you download this from? (e.g., a specific website, email link)

Based on common file download behaviors, here is a write-up on what you should know when encountering a file named "Exitas.rar":