: Large game mods, 3DS game backups, or adult visual novels often use "Cassandra" as a title or character name and are frequently split into multi-part RARs for easier distribution.
Do you have of the archive downloaded in the same folder? How to merge .part files using WinRar Cassandra.part3.rar
Depending on where you obtained the file, "Cassandra" typically refers to: : Large game mods, 3DS game backups, or