filesignatures

	XDR	3C	BizTalk XML-Data Reduced Schema
	XLA	D0 CF 11 E0 A1 B1 1A E1	Microsoft Office document
	XLS	D0 CF 11 E0 A1 B1 1A E1	Microsoft Office document
	XLS	09 08 10 00 00 06 05 00	Excel spreadsheet subheader_1
	XLS	FD FF FF FF 10	Excel spreadsheet subheader_2
	XLS	FD FF FF FF 1F	Excel spreadsheet subheader_3
	XLS	FD FF FF FF 22	Excel spreadsheet subheader_4
	XLS	FD FF FF FF 23	Excel spreadsheet subheader_5
	XLS	FD FF FF FF 28	Excel spreadsheet subheader_6
	XLS	FD FF FF FF 29	Excel spreadsheet subheader_7
	XLSX	50 4B 03 04	MS Office Open XML Format Document
	XLSX	50 4B 03 04 14 00 06 00	MS Office 2007 documents
	XML	3C 3F 78 6D 6C 20 76 65 72 73 69 6F 6E 3D 22 31 2E 30 22 3F 3E	User Interface Language
	XPI	50 4B 03 04	Mozilla Browser Archive
	XPS	50 4B 03 04	XML paper specification file
	XPT	50 4B 03 04	eXact Packager Models
	XPT	58 50 43 4F 4D 0A 54 79	XPCOM libraries

https://www.filesignatures.net/index.php?page=all