As of my last knowledge update in January 2022, there isn't a standard or widely recognized file format known as [URL=https://cruxtekk.com/what-are-cpi-files-how-to-open-a-cpi-file/]"CPI files[/URL]." However, file extensions can vary, and different software or systems may use specific file extensions or acronyms for their data files.If "CPI files" refers to a specific file format or type, it could be associated with a particular software application or system that emerged after my last update. To determine the nature and purpose of CPI files, consider the following steps: