A co-worker was converting a binary raster using Float to Raster Tool and with header specifying XLLCORNER, YLLCORNER corner of image, he assumed data had to be written out in row major format from SW to NW, but that flipped the raster. Why specify SW corner of data in header if data is written from NW. Is this from some past convention that carries through to present day? Why not specify header with XULCORNER, YULCORNER? Or with SW Corner as origin then expect the data to be written to file from SW to NW in row major format.