diff --git a/xlsx/scripts/office/schemas/microsoft/wml-symex-2015.xsd b/xlsx/scripts/office/schemas/microsoft/wml-symex-2015.xsd
new file mode 100644
index 0000000..89ada90
--- /dev/null
+++ b/xlsx/scripts/office/schemas/microsoft/wml-symex-2015.xsd
@@ -0,0 +1,8 @@
+ <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:w12="http://schemas.openxmlformats.org/wordprocessingml/2006/main" elementFormDefault="qualified" attributeFormDefault="qualified" blockDefault="#all" xmlns="http://schemas.microsoft.com/office/word/2015/wordml/symex" targetNamespace="http://schemas.microsoft.com/office/word/2015/wordml/symex">
+   <xsd:import id="w12" namespace="http://schemas.openxmlformats.org/wordprocessingml/2006/main" schemaLocation="../ISO-IEC29500-4_2016/wml.xsd"/>
+   <xsd:complexType name="CT_SymEx">
+     <xsd:attribute name="font" type="w12:ST_String"/>
+     <xsd:attribute name="char" type="w12:ST_LongHexNumber"/>
+   </xsd:complexType>
+   <xsd:element name="symEx" type="CT_SymEx"/>
+ </xsd:schema>