diff --git a/xlsx/scripts/office/schemas/ecma/fouth-edition/opc-coreProperties.xsd b/xlsx/scripts/office/schemas/ecma/fouth-edition/opc-coreProperties.xsd
new file mode 100644
index 0000000..b69f3f2
--- /dev/null
+++ b/xlsx/scripts/office/schemas/ecma/fouth-edition/opc-coreProperties.xsd
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+ xmlns="http://schemas.openxmlformats.org/package/2006/metadata/core-properties"
+ targetNamespace="http://schemas.openxmlformats.org/package/2006/metadata/core-properties"
+ elementFormDefault="qualified">
+ <xsd:element name="coreProperties" type="CT_CoreProperties"/>
+ <xsd:complexType name="CT_CoreProperties">
+  <xsd:sequence>
+   <xsd:element name="creator" type="xsd:string" minOccurs="0"/>
+   <xsd:element name="title" type="xsd:string" minOccurs="0"/>
+   <xsd:element name="subject" type="xsd:string" minOccurs="0"/>
+   <xsd:element name="description" type="xsd:string" minOccurs="0"/>
+   <xsd:element name="keywords" type="xsd:string" minOccurs="0"/>
+   <xsd:element name="category" type="xsd:string" minOccurs="0"/>
+   <xsd:element name="contentStatus" type="xsd:string" minOccurs="0"/>
+   <xsd:element name="version" type="xsd:string" minOccurs="0"/>
+   <xsd:element name="revision" type="xsd:string" minOccurs="0"/>
+   <xsd:element name="lastModifiedBy" type="xsd:string" minOccurs="0"/>
+   <xsd:element name="lastPrinted" type="xsd:dateTime" minOccurs="0"/>
+   <xsd:element name="created" type="xsd:dateTime" minOccurs="0"/>
+   <xsd:element name="modified" type="xsd:dateTime" minOccurs="0"/>
+  </xsd:sequence>
+ </xsd:complexType>
+</xsd:schema>