More Than 1,500 File Extensions Are Used Inside R Packages

The R code to reproduce the results is available from the GitHub repo nanxstats/cran-file-exts. Photo by Pawel Czerwinski. When applied correctly, file extensions can be informative. They are the very first clue on handling a specific file without parsing the file content. To properly capture and classify files in source R packages, I am interested in learning what file extensions are frequently used by R …