diff --git a/src/ZfcDatagrid/Renderer/Csv/Renderer.php b/src/ZfcDatagrid/Renderer/Csv/Renderer.php
index a0b51eee..195cff00 100644
--- a/src/ZfcDatagrid/Renderer/Csv/Renderer.php
+++ b/src/ZfcDatagrid/Renderer/Csv/Renderer.php
@@ -48,7 +48,7 @@ public function execute()
         $optionsExport = $options['settings']['export'];
 
         $path         = $optionsExport['path'];
-        $saveFilename = $this->getCacheId() . '.csv';
+        $saveFilename = date('Y-m-d_H-i-s') . $this->getCacheId() . '.csv';
 
         $fp = fopen($path . '/' . $saveFilename, 'w');
 
diff --git a/src/ZfcDatagrid/Renderer/PHPExcel/Renderer.php b/src/ZfcDatagrid/Renderer/PHPExcel/Renderer.php
index 201e0453..8247e344 100644
--- a/src/ZfcDatagrid/Renderer/PHPExcel/Renderer.php
+++ b/src/ZfcDatagrid/Renderer/PHPExcel/Renderer.php
@@ -220,7 +220,7 @@ public function execute()
          * Save the file
          */
         $path         = $optionsExport['path'];
-        $saveFilename = $this->getCacheId() . '.xlsx';
+        $saveFilename = date('Y-m-d_H-i-s') . $this->getCacheId() . '.xlsx';
 
         $excelWriter = new \PHPExcel_Writer_Excel2007($phpExcel);
         $excelWriter->setPreCalculateFormulas(false);
diff --git a/src/ZfcDatagrid/Renderer/TCPDF/Renderer.php b/src/ZfcDatagrid/Renderer/TCPDF/Renderer.php
index 5c6805d1..6fdf7831 100644
--- a/src/ZfcDatagrid/Renderer/TCPDF/Renderer.php
+++ b/src/ZfcDatagrid/Renderer/TCPDF/Renderer.php
@@ -111,7 +111,7 @@ protected function saveAndSend()
         $optionsExport = $options['settings']['export'];
 
         $path         = $optionsExport['path'];
-        $saveFilename = $this->getCacheId() . '.pdf';
+        $saveFilename = date('Y-m-d_H-i-s') . $this->getCacheId() . '.pdf';
         $pdf->Output($path . '/' . $saveFilename, 'F');
 
         $response = new ResponseStream();