diff --git a/assays/with-observation-units/datasets/phenotyping.csv b/assays/with-observation-units/datasets/phenotyping.csv
new file mode 100644
index 0000000000000000000000000000000000000000..8ac0183cc5d3fc348fb1d2bbe30fb6f5c462d2e5
--- /dev/null
+++ b/assays/with-observation-units/datasets/phenotyping.csv
@@ -0,0 +1,11 @@
+Assay Name,Date,Trait,Value
+Heris-1-1-1,2024-09-05T10:51:00+0100,AwnTip_M_date,2024-09-05
+Heris-1-1-1,2024-09-05T10:51:00+0100,Head_M_date,2024-09-04
+Heris-1-1-1,2024-09-05T10:51:00+0100,Mat_M_date,2024-09-06
+Heris-1-1-1,2024-09-05T10:51:00+0100,PlntHght_M_cm,142
+Heris-1-1-1,2024-09-05T10:51:00+0100,RwTyp_E_1to2,2-rowed
+Heris-4-13-4,2024-09-05T10:51:23+0100,AwnTip_M_date,2024-09-05
+Heris-4-13-4,2024-09-05T10:51:23+0100,Head_M_date,2024-09-06
+Heris-4-13-4,2024-09-05T10:51:23+0100,Mat_M_date,2024-09-04
+Heris-4-13-4,2024-09-05T10:51:23+0100,PlntHght_M_cm,153
+Heris-4-13-4,2024-09-05T10:51:23+0100,RwTyp_E_1to2,2-rowed
diff --git a/assays/with-observation-units/isa.assay.xlsx b/assays/with-observation-units/isa.assay.xlsx
index d126db26db5a66568bb9ad1159526abe6165d9aa..84f656600666fa140a98b519cd6da8abd2d35594 100644
Binary files a/assays/with-observation-units/isa.assay.xlsx and b/assays/with-observation-units/isa.assay.xlsx differ