diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
index 40c3f35..bd9ab8c 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
@@ -1705,7 +1705,8 @@ public class TDGWTServiceImpl extends RemoteServiceServlet implements
 		String fileUrlOnStorage = filesStorage.storageCSVTempFile(user,
 				fileUploadSession.getCsvFile());
 		logger.debug("File Url On Storage:" + fileUrlOnStorage);
-
+		fileUploadSession.getCsvFile().delete();
+		
 		Map<String, Object> parameterInstance = csvImportFileParameter(
 				fileUrlOnStorage, fileUploadSession, csvImportSession);
 
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/file/FileUtil.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/file/FileUtil.java
index 13c6997..17f768a 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/file/FileUtil.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/file/FileUtil.java
@@ -90,7 +90,7 @@ public class FileUtil {
 
 	public static void setImportFile(FileUploadSession fileUploadSession, InputStream is, String name, String mimeType) throws Exception
 	{
-		File csvTmp = File.createTempFile("import", "csv");
+		File csvTmp = File.createTempFile("import", ".csv");
 
 		csvTmp.deleteOnExit();