diff --git a/elemental-media-type/elemental-media-type-impl/src/test/java/xyz/elemental/mediatype/impl/MediaTypeResolverImplTest.java b/elemental-media-type/elemental-media-type-impl/src/test/java/xyz/elemental/mediatype/impl/MediaTypeResolverImplTest.java
index 0578507750..e2d5edba53 100644
--- a/elemental-media-type/elemental-media-type-impl/src/test/java/xyz/elemental/mediatype/impl/MediaTypeResolverImplTest.java
+++ b/elemental-media-type/elemental-media-type-impl/src/test/java/xyz/elemental/mediatype/impl/MediaTypeResolverImplTest.java
@@ -90,7 +90,7 @@ public void allResolveCsvExtension() {
 
     @Test
     public void allResolveDocxExtension() {
-        assertAllResolveFromFileName("something.docx", MediaType.APPLICATION_OPENXML_WORDPROCESSING, new String[] {"docx"}, StorageType.XML);
+        assertAllResolveFromFileName("something.docx", MediaType.APPLICATION_OPENXML_WORDPROCESSING, new String[] {"docx"}, StorageType.BINARY);
     }
 
     @Test
@@ -170,17 +170,17 @@ public void allResolveNcxExtension() {
 
     @Test
     public void allResolveOdtExtension() {
-        assertAllResolveFromFileName("something.odt", MediaType.APPLICATION_OPENDOCUMENT_TEXT, new String[] {"odt"}, StorageType.XML);
+        assertAllResolveFromFileName("something.odt", MediaType.APPLICATION_OPENDOCUMENT_TEXT, new String[] {"odt"}, StorageType.BINARY);
     }
 
     @Test
     public void allResolveOdpExtension() {
-        assertAllResolveFromFileName("something.odp", MediaType.APPLICATION_OPENDOCUMENT_PRESENTATION, new String[] {"odp"}, StorageType.XML);
+        assertAllResolveFromFileName("something.odp", MediaType.APPLICATION_OPENDOCUMENT_PRESENTATION, new String[] {"odp"}, StorageType.BINARY);
     }
 
     @Test
     public void allResolveOdsExtension() {
-        assertAllResolveFromFileName("something.ods", MediaType.APPLICATION_OPENDOCUMENT_SPREADSHEET, new String[] {"ods"}, StorageType.XML);
+        assertAllResolveFromFileName("something.ods", MediaType.APPLICATION_OPENDOCUMENT_SPREADSHEET, new String[] {"ods"}, StorageType.BINARY);
     }
 
     @Test
@@ -195,7 +195,7 @@ public void allResolvePngExtension() {
 
     @Test
     public void allResolvePptxExtension() {
-        assertAllResolveFromFileName("something.pptx", MediaType.APPLICATION_OPENXML_PRESENTATION, new String[] {"pptx"}, StorageType.XML);
+        assertAllResolveFromFileName("something.pptx", MediaType.APPLICATION_OPENXML_PRESENTATION, new String[] {"pptx"}, StorageType.BINARY);
     }
 
     @Test
@@ -240,7 +240,7 @@ public void allResolveXhtmlExtension() {
 
     @Test
     public void allResolveXlsxExtension() {
-        assertAllResolveFromFileName("something.xlsx", MediaType.APPLICATION_OPENXML_SPREADSHEET, new String[] {"xlsx"}, StorageType.XML);
+        assertAllResolveFromFileName("something.xlsx", MediaType.APPLICATION_OPENXML_SPREADSHEET, new String[] {"xlsx"}, StorageType.BINARY);
     }
 
     @Test
@@ -265,7 +265,7 @@ public void allResolveCsvIdentifier() {
 
     @Test
     public void allResolveDocxIdentifier() {
-        assertAllResolveFromIdentifier(MediaType.APPLICATION_OPENXML_WORDPROCESSING, new String[] {"docx"}, StorageType.XML);
+        assertAllResolveFromIdentifier(MediaType.APPLICATION_OPENXML_WORDPROCESSING, new String[] {"docx"}, StorageType.BINARY);
     }
 
     @Test
@@ -335,17 +335,17 @@ public void allResolveNcxIdentifier() {
 
     @Test
     public void allResolveOdtIdentifier() {
-        assertAllResolveFromIdentifier(MediaType.APPLICATION_OPENDOCUMENT_TEXT, new String[] {"odt"}, StorageType.XML);
+        assertAllResolveFromIdentifier(MediaType.APPLICATION_OPENDOCUMENT_TEXT, new String[] {"odt"}, StorageType.BINARY);
     }
 
     @Test
     public void allResolveOdpIdentifier() {
-        assertAllResolveFromIdentifier(MediaType.APPLICATION_OPENDOCUMENT_PRESENTATION, new String[] {"odp"}, StorageType.XML);
+        assertAllResolveFromIdentifier(MediaType.APPLICATION_OPENDOCUMENT_PRESENTATION, new String[] {"odp"}, StorageType.BINARY);
     }
 
     @Test
     public void allResolveOdsIdentifier() {
-        assertAllResolveFromIdentifier(MediaType.APPLICATION_OPENDOCUMENT_SPREADSHEET, new String[] {"ods"}, StorageType.XML);
+        assertAllResolveFromIdentifier(MediaType.APPLICATION_OPENDOCUMENT_SPREADSHEET, new String[] {"ods"}, StorageType.BINARY);
     }
 
     @Test
@@ -360,7 +360,7 @@ public void allResolvePngIdentifier() {
 
     @Test
     public void allResolvePptxIdentifier() {
-        assertAllResolveFromIdentifier(MediaType.APPLICATION_OPENXML_PRESENTATION, new String[] {"pptx"}, StorageType.XML);
+        assertAllResolveFromIdentifier(MediaType.APPLICATION_OPENXML_PRESENTATION, new String[] {"pptx"}, StorageType.BINARY);
     }
 
     @Test
@@ -400,7 +400,7 @@ public void allResolveXhtmlIdentifier() {
 
     @Test
     public void allResolveXlsxIdentifier() {
-        assertAllResolveFromIdentifier(MediaType.APPLICATION_OPENXML_SPREADSHEET, new String[] {"xlsx"}, StorageType.XML);
+        assertAllResolveFromIdentifier(MediaType.APPLICATION_OPENXML_SPREADSHEET, new String[] {"xlsx"}, StorageType.BINARY);
     }
 
     @Test
diff --git a/elemental-media-type/elemental-media-type-impl/src/test/resources/xyz/elemental/mediatype/impl/media-type-mappings.xml b/elemental-media-type/elemental-media-type-impl/src/test/resources/xyz/elemental/mediatype/impl/media-type-mappings.xml
index 6d8e835bbf..32e303cb23 100644
--- a/elemental-media-type/elemental-media-type-impl/src/test/resources/xyz/elemental/mediatype/impl/media-type-mappings.xml
+++ b/elemental-media-type/elemental-media-type-impl/src/test/resources/xyz/elemental/mediatype/impl/media-type-mappings.xml
@@ -42,8 +42,13 @@
     <storage type="XML">
         <media-type match="full">application/xml</media-type>
         <media-type match="full">text/xml</media-type>
+
+        <!-- NOTE(AR) OpenDocument files, and Office Open XML files are Zip files, and must therefore be stored as binary documents until we add Zip view support. -->
+        <!--
         <media-type match="starts-with">application/vnd.oasis.opendocument.</media-type>
         <media-type match="starts-with">application/vnd.openxmlformats-</media-type>
+        -->
+
         <media-type match="pattern">[^+]+\+xml$</media-type>
     </storage>
 
diff --git a/exist-core/src/main/resources/xyz/elemental/mediatype/media-type-mappings.xml b/exist-core/src/main/resources/xyz/elemental/mediatype/media-type-mappings.xml
index 5efeeb8525..d8b6e55012 100644
--- a/exist-core/src/main/resources/xyz/elemental/mediatype/media-type-mappings.xml
+++ b/exist-core/src/main/resources/xyz/elemental/mediatype/media-type-mappings.xml
@@ -42,8 +42,13 @@
     <storage type="XML">
         <media-type match="full">application/xml</media-type>
         <media-type match="full">text/xml</media-type>
+
+        <!-- NOTE(AR) OpenDocument files, and Office Open XML files are Zip files, and must therefore be stored as binary documents until we add Zip view support. -->
+        <!--
         <media-type match="starts-with">application/vnd.oasis.opendocument.</media-type>
         <media-type match="starts-with">application/vnd.openxmlformats-</media-type>
+        -->
+
         <media-type match="pattern">[^+]+\+xml$</media-type>
 
         <!-- NOTE(AR) This is for backwards compatibility with eXist-db, it should likely be removed in future as it is not really correct -->
@@ -51,4 +56,4 @@
 
     </storage>
     
-</media-type-mappings>
\ No newline at end of file
+</media-type-mappings>