diff --git a/Iris/README.md b/Iris/README.md
index 5e4d80bd..a671f3ac 100644
--- a/Iris/README.md
+++ b/Iris/README.md
@@ -20,3 +20,7 @@ Fisher, R. A. ("The use of multiple measurements in taxonomic problems")[https:/
 
 Dua, D. and Graff, C. (2019). (UCI Machine Learning Repository)[http://archive.ics.uci.edu/ml]. Irvine, CA: University of 
 California, School of Information and Computer Science.
+
+## File formats
+
+A CSV and Feather file are made available.
\ No newline at end of file
diff --git a/Iris/feather/Iris.feather b/Iris/feather/Iris.feather
new file mode 100644
index 00000000..338dceb1
Binary files /dev/null and b/Iris/feather/Iris.feather differ