Created Unassigned: WorkBook opening exception with message "Identifier expected" [9416]

When I trying to open workbook I catch exception.
Code:
```
var doc = new XLWorkbook(workBookFileName);
```

StackTrace:
```
в ClosedXML.Excel.CalcEngine.CalcEngine.Throw(String msg)
в ClosedXML.Excel.CalcEngine.CalcEngine.GetToken()
в ClosedXML.Excel.CalcEngine.CalcEngine.GetParameters()
в ClosedXML.Excel.CalcEngine.CalcEngine.ParseAtom()
в ClosedXML.Excel.CalcEngine.CalcEngine.ParseUnary()
в ClosedXML.Excel.CalcEngine.CalcEngine.ParsePower()
в ClosedXML.Excel.CalcEngine.CalcEngine.ParseMulDiv()
в ClosedXML.Excel.CalcEngine.CalcEngine.ParseAddSub()
в ClosedXML.Excel.CalcEngine.CalcEngine.ParseCompare()
в ClosedXML.Excel.CalcEngine.CalcEngine.ParseExpression()
в ClosedXML.Excel.CalcEngine.CalcEngine.Parse(String expression)
в ClosedXML.Excel.CalcEngine.ExpressionCache.get_Item(String expression)
в ClosedXML.Excel.CalcEngine.CalcEngine.Evaluate(String expression)
в ClosedXML.Excel.XLWorksheet.Evaluate(String expression)
в ClosedXML.Excel.XLCell.get_Value()
в ClosedXML.Excel.XLCell.TryGetValue[T](T& value)
в ClosedXML.Excel.XLCell.GetValue[T]()
в ClosedXML.Excel.XLCell.GetString()
в ClosedXML.Excel.XLTable.get_FieldNames()
в ClosedXML.Excel.XLTable.HeadersRow()
в ClosedXML.Excel.XLTable.InitializeValues(Boolean setAutofilter)
в ClosedXML.Excel.XLTable..ctor(XLRange range, String name, Boolean addToTables, Boolean setAutofilter)
в ClosedXML.Excel.XLRange.CreateTable(String name, Boolean setAutofilter)
в ClosedXML.Excel.XLWorkbook.LoadSpreadsheetDocument(SpreadsheetDocument dSpreadsheet)
в ClosedXML.Excel.XLWorkbook.LoadSheets(String fileName)
в ClosedXML.Excel.XLWorkbook.Load(String file)
в ClosedXML.Excel.XLWorkbook..ctor(String file, XLEventTracking eventTracking)
в ClosedXML.Excel.XLWorkbook..ctor(String file)
в RoadDB.UI.Forms.OpenXmlExcelHelper.ExcelToDataTable(String workBookFileName, String workSheetName, String tableName, Boolean skipHeader, Boolean skipHiddenRow) в c:\Users\Kutuzov\Documents\Visual Studio 2012\Projects\RoadDb2013\RoadDB\Helpers\OpenXmlExcelHelper.cs:строка 157
```
Inner Exception: null