store Editor.xlsx without m_bSaveXFile flag

cell/api.js

@@ -595,7 +595,6 @@ var editor;
             "delimiter": option.asc_getDelimiter(),
             "delimiterChar": option.asc_getDelimiterChar(),
             "codepage": option.asc_getCodePage(),
-			"savexfile": true,
             "nobase64": true
           };
 
@@ -617,7 +616,6 @@ var editor;
             "url": this.documentUrl,
             "title": this.documentTitle,
             "password": option.asc_getPassword(),
-			"savexfile": true,
             "nobase64": true
           };
 

common/apiBase.js

@@ -440,9 +440,6 @@
 				"title"         : this.documentTitle,
 				"nobase64"      : true
 			};
-			if (this.editorId == c_oEditorId.Spreadsheet) {
-				rData["savexfile"] = true;
-			}
 			if (versionHistory)
 			{
                 rData["closeonerror"] = versionHistory.isRequested;