Batch XLS AND XLSX Converter is a Excel XLS to XLSX XLSX to XLS Batch Converter that can convert Excel XLS to XLSX and XLSX to XLS easily. Batch XLS TO XLSX Converter supports powerful search for a lot of files. A XLS and XLSX converter for Excel. Batch XLS AND XLSX Converter supports project and command line. Batch XLS AND XLSX Converter has a friendly GUI so it is used very easily. Batch XLS & XLSX Converter Drag and Explorer Context supported. Batch XLS AND XLSX Converter supports a efficient Multi-Thread conversion engine. So you could control the conversion action very easily. You can stop or pause and continue it in any time. You can save your conversion work in a project file (.batch-xls2xls) for re-use. You can run the batch-xls2xls project in Microsoft Windows Explorer or command line directly. The main features of Batch XLSX to XLS Converter: Convert Excel XLS (Excel 2003) to XLSX (Excel 2007 OOxml Format) and XLSX to XLS easily. Batch convert XLSX to XLS and XLS to XLSX with GUI that supports powerful search function. Supports convert a xls/xlsx file. Supports convert xls/xlsx files in a folder. Drag and context menu with Microsoft Explorer supported. Supports batch project and command line. A efficient high-speed Multi-Thread conversion engine. System Requirements: Intel x86/x64 Microsoft Windows 2000/XP/Vista/Win7/WinServer The KEYWORDS of Batch XLSX to XLS Converter: xls to xlsxxlsx to xlsxls to xlsx converterxlsx to xls converterconvert excel 2003 to excel 2007convert excel 2007 to excel 2003