A defi file extension is related to some Oracle products. A defi file contains de-install scripts.
DEFI file extension - Oracle 7 de-install script
What is defi file? How to open defi files?
File type specification:
The defi file extension is associated with some Oracle products, such as Oracle Database version 7.
The *.defi files contain de-install scripts.
Most likely some old format without support. No further information could be found.
This defi 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.