diff --git a/example-data/test-datasets/well_fov_id_compressed1.csv.gz b/example-data/test-datasets/well_fov_id_compressed1.csv.gz
new file mode 100644
index 0000000000000000000000000000000000000000..52196a05041b7f4f005f8262d5d08c9c7101bcec
Binary files /dev/null and b/example-data/test-datasets/well_fov_id_compressed1.csv.gz differ
diff --git a/example-data/test-datasets/well_fov_id_compressed2.csv.zip b/example-data/test-datasets/well_fov_id_compressed2.csv.zip
new file mode 100644
index 0000000000000000000000000000000000000000..ef28855e1cae6bea5c5cc703904779b8e872df1e
Binary files /dev/null and b/example-data/test-datasets/well_fov_id_compressed2.csv.zip differ
diff --git a/example-data/test-datasets/wide.csv b/example-data/test-datasets/wide.csv
new file mode 100644
index 0000000000000000000000000000000000000000..1cb63ce8e8144acb1bda8f4dedadc68bf7ac940e
--- /dev/null
+++ b/example-data/test-datasets/wide.csv
@@ -0,0 +1,4 @@
+ID,  0,   20,   30,   40,   50
+1, 0.1, 0.11, 0.12, 0.13, 0.14
+2, 0.2, 0.21, 0.22, 0.23, 0.24
+3, 0.3, 0.31, 0.32, 0.33, 0.34