.PXI File Extension
File Type 1PlexTools Disc Image
What is a PXI file?
Disc image created with PlexTools disc copying software (bundled with Plextor drives); commonly used to make backups of CDs and DVDs
File Type 2Pyrex Include File
.PXI File Association 2
Source code file written in Pyrex, a programming language and compiler used for building Python modules with C-like syntax and performance; used similarly to the #include directive from the C language and is used for textually including code into a .PYX file.
PXI files differ from .PXD files, which are definition, or header, files that contain declarations of Pyrex classes and methods.