Notes about the PZFX file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The PZFX file type is primarily associated with 'GraphPad Prism' by GraphPad Software, Inc.. GraphPad Prism is a combination of basic biostatistics, curve fitting and scientific graphing. Files saved to the .PZF format can only be opened by Prism (version 4 or 5). Files saved to the .PZFX format can only be opened by Prism 5. But the first part of a .PZFX file contains all the data tables and info sheets in a plain-text XML format that can be viewed by other programs.