Format
The format is:
chr [1:23] "9636" "2537" "2633" "1435" "103" "3433" "3434" ...Source
Robertson G, Hirst M, Bainbridge M, Bilenky M et al. Genome-wide profiles of STAT1 DNA association using chromatin immunoprecipitation and massively parallel sequencing. Nat Methods 2007 Aug;4(8):651-7.