##fileformat=VCFv4.2
##contig=<ID=chr1,length=248956422>
##FORMAT=<ID=XX,Number=1,Type=Integer,Description="X">
##INFO=<ID=XX,Number=1,Type=Integer,Description="X">
#CHROM	POS	ID	REF	ALT	QUAL	FILTER	INFO	FORMAT	SM
chr1	833602	.	G	A	.	.	XX=1234	XX	1234
