Computer file extensions - X

Updated: 10/18/2022 by Computer Hope

Below is a listing of each of the different file extensions that begin with the letter "X." If you are looking for a file extension that starts with a different letter, click the corresponding beginning letter below.

X
.X3F Digital camera RAW file format.
.XAP Compiled Microsoft Silverlight file.
.XBM X11 bitmap.
.XIF Wang image file and Xerox image file.
.XLB Microsoft Excel file.
.XLR Microsoft Works spreadsheet file.
.XLS Microsoft Excel 2003 and earlier file.
.XLSB Microsoft Excel file saved using a binary format.
.XLSM Microsoft Excel file containing macros.
.XLSX Microsoft Excel 2007 and later file.
.XM 1. Sound file.
2. Fast tracker 2 extended module.
.XML Extensible markup language file. See XML (extensible markup language) definition for full information.
.XMP Metadata file for Adobe Bridge, Adobe Photoshop, and Microsoft's Photos program that stores edits made to raw picture files taken with a digital camera.
.XNK Exchange shortcut.
.XOT Xnetech job output file.
.XPI Compressed archive file for installing add-ons, plugins, or themes in Mozilla applications, including Firefox and Thunderbird.
.XPM X picsmap graphic.
.XPS Document file created using the Microsoft XPS (XML Paper Specification) format.
.XQT SuperCalc macro sheet.
.XRF Cross-reference file.
.XR1 Epic MegaGames Xargon file.
.XSL XML style sheet.
.XSM LEXIS-NEXIS tracker.
.XT Xdebug tracing output file.
.XTB LocoScript external translation table.
.XWD X Windows dump file.
.XWF Yamaha XG Works file.
.XXE Xxencoded file.
.XY XYWrite text file.
.XY3 XYWrite text file.
.XY4 XYWrite IV document.
.XYP XYWrite III plus document.
.XYW XYWrite 4.0 document for Windows.