.PXI File Extension
Pyrex Include File
| Developer | Greg Ewing |
| Popularity |
3.0 | 4 Votes |
What is a PXI file?
A PXI file is a source code file written in Pyrex, a programming language designed to help developers write Python modules that include C-level performance code. Developers primarily use PXI files to store chunks of code to be inserted into a .PYX file, allowing them to reuse code or break large modules into smaller, more manageable parts.
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PXI files are similar to how the #include directive works in the C programming language. Additionally, PXI files are different from .PXD files, which are definition files that declare classes, functions, or variables for use in other Pyrex (or Cython) modules. While PXD files serve a similar purpose to .C header files, PXI files are more like inline text includes that are copied directly into a file at compile time.
NOTE: Pyrex is less commonly used today (not actively developed) but served as the basis for Cython, a more modern and widely adopted tool for writing Python-compatible C extensions.
How to open a PXI file
You can open PXI files with any source code or text editor. Some options include Microsoft Notepad (Windows), Apple TextEdit, and Microsoft Visual Studio Code (cross-platform).
Programs that open or reference PXI files
PlexTools Disc Image
| Developer | Plextor |
| Popularity |
3.0 | 2 Votes |
A PXI file may also be a disc image created by Plextor PlexTools, a now-discontinued disc copying and management program bundled with Plextor CD and DVD drives. It contains an exact copy of the data from a CD or DVD, including files, folders, and disc structure. Users typically created PXI files to back up physical discs or to make duplicate copies of discs.
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PlexTools was a suite of CD and DVD management tools developed by Plextor, a company known for its high-quality optical drives. Plextor released the program in the early 2000s to work exclusively with Plextor drives, offering advanced features like disc copying, audio extraction, drive diagnostics, and media quality testing.
It was often bundled with Plextor hardware and became a favorite among users who wanted greater control over their optical media and drive performance. Plextor eventually discontinued PlexTools, making the PXI format obscure as physical media declined.
How to open a PXI file
You can open PXI files with EZB Systems UltraISO or Smart Projects IsoBuster in Windows. You can also open PXI files with Plextor PlexTools Professional software, but it is discontinued.
How to convert a PXI file
Several programs, including Smart Projects IsoBuster and EZB Systems UltraISO, can convert PXI files to other file types. For example, IsoBuster can convert PXI files to the .ISO Disk Image format.