diff --git a/r_tutorials/w01-R_tutorial.Rmd b/r_tutorials/w01-R_tutorial.rmd similarity index 100% rename from r_tutorials/w01-R_tutorial.Rmd rename to r_tutorials/w01-R_tutorial.rmd diff --git a/r_tutorials/w03-R_tutorial.Rmd b/r_tutorials/w03-R_tutorial.rmd similarity index 100% rename from r_tutorials/w03-R_tutorial.Rmd rename to r_tutorials/w03-R_tutorial.rmd