The X
按字母分类：
extension name file type Classification
XAR Excel Auto-Recovery File Spreadsheet file
XL Excel Spreadsheet Spreadsheet file
XLR Works Spreadsheet Spreadsheet file
XLS Excel Spreadsheet Spreadsheet file
XLSB Excel Binary Spreadsheet Spreadsheet file
XLSHTML Microsoft Excel HTML Spreadsheet Spreadsheet file
XLSM Excel Open XML Macro-Enabled Spreadsheet Spreadsheet file
XLSMHTML Microsoft Excel MIME HTML Spreadsheet Spreadsheet file
XLSX Microsoft Excel Open XML Spreadsheet Spreadsheet file
XLTHTML Microsoft Excel HTML Spreadsheet Template Spreadsheet file
XLTM Excel Open XML Macro-Enabled Spreadsheet Template Spreadsheet file
XLTX Excel Open XML Spreadsheet Template Spreadsheet file