.banana is Banaranama question export data
Key Features: .BANANA File Extension
What is an .BANANA file?
The banana file extension is reported to be used for some sort of question export format used by Banarama by Binary Cheese.
It seems to be obsolete product without support from developer.
This banana file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.