=== modified file 'dhis-2/dhis-web/dhis-web-commons/src/main/java/org/hisp/dhis/result/GridXlsResult.java'
--- dhis-2/dhis-web/dhis-web-commons/src/main/java/org/hisp/dhis/result/GridXlsResult.java	2011-01-17 16:17:06 +0000
+++ dhis-2/dhis-web/dhis-web-commons/src/main/java/org/hisp/dhis/result/GridXlsResult.java	2011-02-11 08:32:38 +0000
@@ -115,7 +115,7 @@
 
         WritableWorkbook workbook = Workbook.createWorkbook( out );
 
-        String sheetName = StringUtils.defaultIfEmpty( grid.getTitle(), DEFAULT_SHEET_NAME );
+        String sheetName = CodecUtils.filenameEncode( StringUtils.defaultIfEmpty( grid.getTitle(), DEFAULT_SHEET_NAME ) );
         
         WritableSheet sheet = workbook.createSheet( sheetName, 0 );