diff --git a/fine-poi/src/main/java/com/fr/third/v2/org/apache/poi/xssf/streaming/SXSSFWorkbook.java b/fine-poi/src/main/java/com/fr/third/v2/org/apache/poi/xssf/streaming/SXSSFWorkbook.java
index 456332b2f..b27a79453 100644
--- a/fine-poi/src/main/java/com/fr/third/v2/org/apache/poi/xssf/streaming/SXSSFWorkbook.java
+++ b/fine-poi/src/main/java/com/fr/third/v2/org/apache/poi/xssf/streaming/SXSSFWorkbook.java
@@ -208,7 +208,7 @@ public class SXSSFWorkbook implements Workbook {
      * @param compressTmpFiles whether to use gzip compression for temporary files
      */
     public SXSSFWorkbook(XSSFWorkbook workbook, int rowAccessWindowSize, boolean compressTmpFiles){
-    	this(workbook,rowAccessWindowSize, compressTmpFiles, false);
+    	this(workbook,rowAccessWindowSize, compressTmpFiles, true);
     }
 
     /**
diff --git a/fine-poi/src/main/java/com/fr/third/v2/org/apache/poi/xssf/streaming/SheetDataWriter.java b/fine-poi/src/main/java/com/fr/third/v2/org/apache/poi/xssf/streaming/SheetDataWriter.java
index 2dbf189ac..93980a525 100644
--- a/fine-poi/src/main/java/com/fr/third/v2/org/apache/poi/xssf/streaming/SheetDataWriter.java
+++ b/fine-poi/src/main/java/com/fr/third/v2/org/apache/poi/xssf/streaming/SheetDataWriter.java
@@ -36,6 +36,7 @@ import com.fr.third.v2.org.apache.poi.ss.usermodel.Cell;
 import com.fr.third.v2.org.apache.poi.ss.usermodel.CellStyle;
 import com.fr.third.v2.org.apache.poi.ss.usermodel.CellType;
 import com.fr.third.v2.org.apache.poi.ss.usermodel.FormulaError;
+import com.fr.third.v2.org.apache.poi.ss.usermodel.RichTextString;
 import com.fr.third.v2.org.apache.poi.ss.util.CellReference;
 import com.fr.third.v2.org.apache.poi.util.POILogFactory;
 import com.fr.third.v2.org.apache.poi.util.POILogger;
@@ -315,7 +316,9 @@ public class SheetDataWriter implements Closeable {
             }
             case STRING: {
                 if (_sharedStringSource != null) {
-                    XSSFRichTextString rt = new XSSFRichTextString(cell.getStringCellValue());
+                    //XSSFRichTextString rt = new XSSFRichTextString(cell.getStringCellValue());
+                    RichTextString rt = cell.getRichStringCellValue();
+                    int sRef = _sharedStringSource.addSharedStringItem(rt);
                     int sRef = _sharedStringSource.addSharedStringItem(rt);
 
                     writeAttribute("t", STCellType.S.toString());