diff --git a/Common/OfficeFileFormatChecker2.cpp b/Common/OfficeFileFormatChecker2.cpp
index 0245a82fee..ffc0290201 100644
--- a/Common/OfficeFileFormatChecker2.cpp
+++ b/Common/OfficeFileFormatChecker2.cpp
@@ -892,6 +892,7 @@ std::wstring COfficeFileFormatChecker::GetExtensionByType(int type)
     switch (type)
     {
 	case AVS_OFFICESTUDIO_FILE_DOCUMENT_OFORM:		return L".oform";
+	case AVS_OFFICESTUDIO_FILE_DOCUMENT_DOCXF:		return L".docxf";
 	case AVS_OFFICESTUDIO_FILE_DOCUMENT_DOCX:		return L".docx";
     case AVS_OFFICESTUDIO_FILE_DOCUMENT_DOCM:		return L".docm";
     case AVS_OFFICESTUDIO_FILE_DOCUMENT_DOTX:		return L".dotx";
@@ -954,7 +955,7 @@ std::wstring COfficeFileFormatChecker::GetExtensionByType(int type)
     case AVS_OFFICESTUDIO_FILE_IMAGE_PSD:           return L".psd";
     case AVS_OFFICESTUDIO_FILE_IMAGE_ICO:           return L".ico";
 
-    case AVS_OFFICESTUDIO_FILE_CANVAS_WORD:
+	case AVS_OFFICESTUDIO_FILE_CANVAS_WORD:
     case AVS_OFFICESTUDIO_FILE_CANVAS_SPREADSHEET:
     case AVS_OFFICESTUDIO_FILE_CANVAS_PRESENTATION:	return L".bin";
     case AVS_OFFICESTUDIO_FILE_OTHER_OLD_DOCUMENT:
@@ -973,6 +974,8 @@ int COfficeFileFormatChecker::GetFormatByExtension(const std::wstring& ext)
         return AVS_OFFICESTUDIO_FILE_DOCUMENT_DOCX;
 	if (L".oform" == ext)
 		return AVS_OFFICESTUDIO_FILE_DOCUMENT_DOCX; //AVS_OFFICESTUDIO_FILE_DOCUMENT_OFORM
+	if (L".docxf" == ext)
+		return AVS_OFFICESTUDIO_FILE_DOCUMENT_DOCX; //AVS_OFFICESTUDIO_FILE_DOCUMENT_DOCXF
 	if (L".docm" == ext)
         return AVS_OFFICESTUDIO_FILE_DOCUMENT_DOCM;
     if (L".dotx" == ext)
diff --git a/Common/OfficeFileFormats.h b/Common/OfficeFileFormats.h
index 5855661387..1d402787ec 100644
--- a/Common/OfficeFileFormats.h
+++ b/Common/OfficeFileFormats.h
@@ -54,6 +54,7 @@
 #define AVS_OFFICESTUDIO_FILE_DOCUMENT_HTML_IN_CONTAINER AVS_OFFICESTUDIO_FILE_DOCUMENT + 0x0012
 #define AVS_OFFICESTUDIO_FILE_DOCUMENT_DOCX_PACKAGE		AVS_OFFICESTUDIO_FILE_DOCUMENT + 0x0014
 #define AVS_OFFICESTUDIO_FILE_DOCUMENT_OFORM			AVS_OFFICESTUDIO_FILE_DOCUMENT + 0x0015
+#define AVS_OFFICESTUDIO_FILE_DOCUMENT_DOCXF			AVS_OFFICESTUDIO_FILE_DOCUMENT + 0x0016
 
 #define AVS_OFFICESTUDIO_FILE_PRESENTATION				0x0080
 #define AVS_OFFICESTUDIO_FILE_PRESENTATION_PPTX			AVS_OFFICESTUDIO_FILE_PRESENTATION + 0x0001
diff --git a/X2tConverter/src/cextracttools.h b/X2tConverter/src/cextracttools.h
index a90eb118b5..87bd96918d 100644
--- a/X2tConverter/src/cextracttools.h
+++ b/X2tConverter/src/cextracttools.h
@@ -1084,6 +1084,10 @@ namespace NExtractTools
             else
                 m_sFileTo->append(FileFormatChecker.GetExtensionByType(toFormat));
           }
+          else if ( AVS_OFFICESTUDIO_FILE_DOCUMENT_OFORM == toFormat || AVS_OFFICESTUDIO_FILE_DOCUMENT_DOCXF == toFormat)
+          {
+              toFormat = AVS_OFFICESTUDIO_FILE_DOCUMENT_DOCX;
+          }
           *m_nFormatTo = toFormat;
         }
         bool getDontSaveAdditional() const