diff --git a/workflow/engine/methods/processes/mainInit.php b/workflow/engine/methods/processes/mainInit.php
index f14d1fd03..45b9f4ff7 100755
--- a/workflow/engine/methods/processes/mainInit.php
+++ b/workflow/engine/methods/processes/mainInit.php
@@ -29,11 +29,24 @@ $RBAC->requirePermissions( 'PM_FACTORY' );
 G::loadClass( 'configuration' );
 $conf = new Configurations();
 
+if (preg_match("/^([\d\.]+).*$/", System::getVersion(), $arrayMatch)) {
+    $pmVersion = $arrayMatch[1];
+} else {
+    $pmVersion = ""; //Branch master
+}
+
+$arrayPmFileExtension = array("pm", "pmx", "bpmn");
+
+if ($pmVersion != "") {
+    $arrayPmFileExtension = (version_compare($pmVersion . "", "3", ">="))? $arrayPmFileExtension : array("pm");
+}
+
 $oHeadPublisher->addExtJsScript( 'processes/main', true ); //adding a javascript file .js
 $oHeadPublisher->addContent( 'processes/main' ); //adding a html file  .html.
 
 $partnerFlag = (defined('PARTNER_FLAG')) ? PARTNER_FLAG : false;
 $oHeadPublisher->assign( 'PARTNER_FLAG', $partnerFlag );
 $oHeadPublisher->assign( 'pageSize', $conf->getEnvSetting( 'casesListRowNumber' ) );
+$oHeadPublisher->assign("arrayPmFileExtension", $arrayPmFileExtension);
 
 G::RenderPage( 'publish', 'extJs' );
diff --git a/workflow/engine/templates/processes/main.js b/workflow/engine/templates/processes/main.js
index 8641c838b..f58f82c61 100755
--- a/workflow/engine/templates/processes/main.js
+++ b/workflow/engine/templates/processes/main.js
@@ -1213,7 +1213,7 @@ importProcess = function()
               handler : function(){
                   var arrayMatch = [];
 
-                  if ((arrayMatch = eval("/^.+\.(pm|pmx|bpmn)$/i").exec(Ext.getCmp("form-file").getValue()))) {
+                  if ((arrayMatch = eval("/^.+\.(" + arrayPmFileExtension.join("|") + ")$/i").exec(Ext.getCmp("form-file").getValue()))) {
                       var fileExtension = arrayMatch[1];
 
                       switch (fileExtension) {