diff --git a/ERDs/QACS_Ch-5/QACS_Ch-3 b/ERDs/QACS_Ch-5/QACS_Ch-3.xml
similarity index 100%
rename from ERDs/QACS_Ch-5/QACS_Ch-3
rename to ERDs/QACS_Ch-5/QACS_Ch-3.xml
diff --git a/ERDs/QACS_Ch-5/QACS_Ch-5_Combined b/ERDs/QACS_Ch-5/QACS_Ch-5_Combined.xml
similarity index 100%
rename from ERDs/QACS_Ch-5/QACS_Ch-5_Combined
rename to ERDs/QACS_Ch-5/QACS_Ch-5_Combined.xml
diff --git a/ERDs/QACS_Ch-5/QACS_Ch-5_Inventory b/ERDs/QACS_Ch-5/QACS_Ch-5_Inventory.xml
similarity index 100%
rename from ERDs/QACS_Ch-5/QACS_Ch-5_Inventory
rename to ERDs/QACS_Ch-5/QACS_Ch-5_Inventory.xml
diff --git a/ERDs/QACS_Ch-5/QACS_Ch-5_Subtypes b/ERDs/QACS_Ch-5/QACS_Ch-5_Subtypes.xml
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rename from ERDs/QACS_Ch-5/QACS_Ch-5_Subtypes
rename to ERDs/QACS_Ch-5/QACS_Ch-5_Subtypes.xml
diff --git a/ERDs/WriterPatrol/WP_ERD b/ERDs/WriterPatrol/WP_ERD.xml
similarity index 100%
rename from ERDs/WriterPatrol/WP_ERD
rename to ERDs/WriterPatrol/WP_ERD.xml