The X
按字母分类：
extension name file type Classification
WKI Lotus 2 Worksheet Spreadsheet file
WKQ Quattro Pro for DOS Spreadsheet File Spreadsheet file
WKS Lotus 1-2-3 Spreadsheet Spreadsheet file
WKS Works Spreadsheet Spreadsheet file
WKU Lotus 1-2-3 Spreadsheet Spreadsheet file
WQ1 Quattro Pro for DOS Spreadsheet File Spreadsheet file
WQ2 Quattro Pro for DOS Spreadsheet File Spreadsheet file
WR1 Lotus Symphony Worksheet File Spreadsheet file