diff --git a/xlsx/scripts/office/schemas/mce/mc.xsd b/xlsx/scripts/office/schemas/mce/mc.xsd
new file mode 100644
index 0000000..393008b
--- /dev/null
+++ b/xlsx/scripts/office/schemas/mce/mc.xsd
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+ xmlns="http://schemas.openxmlformats.org/markup-compatibility/2006"
+ targetNamespace="http://schemas.openxmlformats.org/markup-compatibility/2006"
+ elementFormDefault="qualified">
+ <xsd:attribute name="Ignorable" type="xsd:string"/>
+ <xsd:attribute name="ProcessContent" type="xsd:string"/>
+ <xsd:attribute name="PreserveAttributes" type="xsd:string"/>
+ <xsd:attribute name="PreserveElements" type="xsd:string"/>
+ <xsd:element name="AlternateContent" type="CT_AlternateContent"/>
+ <xsd:complexType name="CT_AlternateContent">
+  <xsd:sequence>
+   <xsd:element name="Choice" type="CT_Choice" maxOccurs="unbounded"/>
+   <xsd:element name="Fallback" type="CT_Fallback" minOccurs="0"/>
+  </xsd:sequence>
+ </xsd:complexType>
+ <xsd:complexType name="CT_Choice">
+  <xsd:sequence>
+   <xsd:any namespace="##any" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
+  </xsd:sequence>
+  <xsd:attribute name="Requires" type="xsd:string" use="required"/>
+ </xsd:complexType>
+ <xsd:complexType name="CT_Fallback">
+  <xsd:sequence>
+   <xsd:any namespace="##any" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
+  </xsd:sequence>
+ </xsd:complexType>
+</xsd:schema>