Hello, on this zip file you have : SPOTLarose030819_3x3TOA.bil Subset of the SPOT4/HRVIR1 Generic Binary array file, band interleaved by line (BIL) format Data format is an unsigned integer (2 bytes) Data are stored in the order (line1,band1),(line1,band2),(line1,band3),(line1,band4),(line2,band2),... Pixels are registered by their upper left corner Envi header file (.hdr) is available GENERAL CHARACTERISTICS Acquisition Date : 19/8/2003 Acquisition Hour : 15:58:0 Samples : 152 Lines : 152 Bands : 4 Band4 : SWIR = 1580-1750 nm View zenith angle (°) : -13.10 View azimuth angle (°) : 258.44 Solar zenith angle (°) : 35.11 Solar azimuth angle (°) : 150.93 REFLECTANCE = DIGITAL COUNT / 1000 TOA reflectance (Top of Atmosphere) PROJECTION CHARACTERISTICS This image was geo-referenced by SPOTImage (SPOTViewBasic product) Map Projection Name : UTM 18, North Datum : WGS-84 Units : units=Meters Pixel Size (Easting) : 2.0000000000e+01 Pixel Size (Northing) : 2.0000000000e+01 Upper Left Corner Easting : 481490.534 Upper Left Corner Northing : 5026759.708