diff --git a/data/colon_separator_example.csv b/data/z_SAMPLE_colon_separator_example.csv
similarity index 75%
rename from data/colon_separator_example.csv
rename to data/z_SAMPLE_colon_separator_example.csv
index 87b80ba9..78b63752 100644
--- a/data/colon_separator_example.csv
+++ b/data/z_SAMPLE_colon_separator_example.csv
@@ -1,4 +1,4 @@
 Name:Year:Number
 Item1:2010:60
 Item2:2012:60
-Item3:2014:126
\ No newline at end of file
+Item3:2014:126