diff --git a/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/shared-commonSimpleTypes.xsd b/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/shared-commonSimpleTypes.xsd
new file mode 100644
index 0000000..8b22ad7
--- /dev/null
+++ b/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/shared-commonSimpleTypes.xsd
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+  xmlns="http://schemas.openxmlformats.org/officeDocument/2006/sharedTypes"
+  targetNamespace="http://schemas.openxmlformats.org/officeDocument/2006/sharedTypes"
+  elementFormDefault="qualified">
+  <xsd:simpleType name="ST_Lang">
+    <xsd:restriction base="xsd:string"/>
+  </xsd:simpleType>
+  <xsd:simpleType name="ST_HexColorRGB">
+    <xsd:restriction base="xsd:hexBinary">
+      <xsd:length value="3" fixed="true"/>
+    </xsd:restriction>
+  </xsd:simpleType>
+  <xsd:simpleType name="ST_String">
+    <xsd:restriction base="xsd:string"/>
+  </xsd:simpleType>
+  <xsd:simpleType name="ST_Guid">
+    <xsd:restriction base="xsd:token">
+      <xsd:pattern value="\{[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}\}"/>
+    </xsd:restriction>
+  </xsd:simpleType>
+  <xsd:simpleType name="ST_CalendarType">
+    <xsd:restriction base="xsd:string">
+      <xsd:enumeration value="gregorian"/>
+      <xsd:enumeration value="none"/>
+    </xsd:restriction>
+  </xsd:simpleType>
+  <xsd:simpleType name="ST_OnOff">
+    <xsd:union memberTypes="xsd:boolean"/>
+  </xsd:simpleType>
+  <xsd:simpleType name="ST_Xstring">
+    <xsd:restriction base="xsd:string"/>
+  </xsd:simpleType>
+</xsd:schema>
\ No newline at end of file