Thanks for your inquiry. Aspose.Words has not officially announced the support of MS Word 2013 documents yet. However, Aspose.Words support all major OOXML versions for example OOXML ECMA-376 and OOXML ISO/IEC DIS 29500. However, Aspose.Words does not support following MS Word 2013 features at the moment.
- ISO/IEC 29500 Strict OOXML version
- Load password protected document into Aspose.Words DOM
Please use the latest version of Aspose.Words
and let us know if you face any issue while using Aspose.Words with MS Word 2013 documents.