Since "speelet.msi" is not a recognized installer, you should exercise extreme caution before opening it.

: While an .msi file is technically a database, it can be used to execute malicious scripts or drop harmful binaries onto your system with administrative privileges.

: MSI files often run with system-level permissions, making them an attractive tool for malware to gain full control of a computer. How to Safely Inspect "speelet.msi"

If you must investigate the file, do double-click it. Instead, use these safe methods: How to View Details About and Extract MSI Installer Files