diff --git a/CHANGELOG.md b/CHANGELOG.md
index e87a1965f..e972e3cf6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,9 @@ All notable changes to this project will be documented in this file.
 ### Added
 - FLA export - generating bin/*.dat files for movies and images
 
+### Fixed
+- [#2309] XML export/import - Decimal support
+
 ## [21.0.5] - 2024-09-05
 ### Fixed
 - [#2293] FLA export - stackoverflow on multilevel clips extraction, clipping
@@ -3538,6 +3541,7 @@ Major version of SWF to XML export changed to 2.
 [alpha 9]: https://github.com/jindrapetrik/jpexs-decompiler/compare/alpha8...alpha9
 [alpha 8]: https://github.com/jindrapetrik/jpexs-decompiler/compare/alpha7...alpha8
 [alpha 7]: https://github.com/jindrapetrik/jpexs-decompiler/releases/tag/alpha7
+[#2309]: https://www.free-decompiler.com/flash/issues/2309
 [#2293]: https://www.free-decompiler.com/flash/issues/2293
 [#2294]: https://www.free-decompiler.com/flash/issues/2294
 [#2300]: https://www.free-decompiler.com/flash/issues/2300
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/exporters/swf/SwfXmlExporter.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/exporters/swf/SwfXmlExporter.java
index 60ed1ec2f..db5a3527d 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/exporters/swf/SwfXmlExporter.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/exporters/swf/SwfXmlExporter.java
@@ -45,6 +45,7 @@ import java.util.logging.Logger;
 import javax.xml.stream.XMLOutputFactory;
 import javax.xml.stream.XMLStreamException;
 import javax.xml.stream.XMLStreamWriter;
+import macromedia.asc.util.Decimal128;
 
 /**
  * Exports SWF to XML.
@@ -178,6 +179,16 @@ public class SwfXmlExporter {
             Object value = obj;
             String stringValue = Helper.escapeXmlExportString(value.toString());
 
+            if (isListItem) {
+                writer.writeStartElement(name);
+                writer.writeCharacters(stringValue);
+                writer.writeEndElement();
+            } else {
+                writer.writeAttribute(name, stringValue);
+            }
+        } else if (cls == Decimal128.class) {
+            Decimal128 value = (Decimal128) obj;
+            String stringValue = value.toActionScriptString();
             if (isListItem) {
                 writer.writeStartElement(name);
                 writer.writeCharacters(stringValue);
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/importers/SwfXmlImporter.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/importers/SwfXmlImporter.java
index 562647d8a..88814d38d 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/importers/SwfXmlImporter.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/importers/SwfXmlImporter.java
@@ -180,7 +180,7 @@ public class SwfXmlImporter {
             CurvedEdgeRecord.class, EndShapeRecord.class, StraightEdgeRecord.class, StyleChangeRecord.class,
             BEVELFILTER.class, BLURFILTER.class, COLORMATRIXFILTER.class, CONVOLUTIONFILTER.class,
             DROPSHADOWFILTER.class, GLOWFILTER.class, GRADIENTBEVELFILTER.class, GRADIENTGLOWFILTER.class,
-            AVM2ConstantPool.class, Decimal128.class, Namespace.class, NamespaceSet.class, Multiname.class, MethodInfo.class, MetadataInfo.class,
+            AVM2ConstantPool.class, Namespace.class, NamespaceSet.class, Multiname.class, MethodInfo.class, MetadataInfo.class,
             ValueKind.class, InstanceInfo.class, Traits.class, TraitClass.class, TraitFunction.class,
             TraitMethodGetterSetter.class, TraitSlotConst.class, ClassInfo.class, ScriptInfo.class, MethodBody.class,
             ABCException.class, ABCVersion.class, Amf3Value.class,
@@ -195,7 +195,7 @@ public class SwfXmlImporter {
             }
             objects.put(cls2.getSimpleName(), cls2);
         }
-
+        
         swfObjects = objects;
 
         Map<String, Class> objectsParam = new HashMap<>();
@@ -526,6 +526,12 @@ public class SwfXmlImporter {
             return Float.parseFloat(stringValue);
         } else if (cls == Double.class || cls == double.class) {
             return Double.parseDouble(stringValue);
+        } else if (cls == Decimal128.class) {
+            String sdec = stringValue;
+            if (sdec.endsWith("m")) {
+                sdec = sdec.substring(0, sdec.length() - 1);                
+            }
+            return new Decimal128(sdec);
         } else if (cls == Boolean.class || cls == boolean.class) {
             return Boolean.parseBoolean(stringValue);
         } else if (cls == Character.class || cls == char.class) {