ESRI Arc World file format example:
9.765625 //size of pixel in x direction 0 //rotation term for row 0 //rotation term for column -9.765625 //size of pixel in y direction 567004.8828125 //x coordinate of center of upper left pixel in map units 6219995.1171875 //y coordinate of center of upper left pixel in map units
File extensions for world files are “.jgw” for JPEG image files (jpg) and “.bpw” for Windows Bitmaps (bmp).