Hello, on this zip file you have : SPOTLaprida021113_3x3TOA.bil Subset of the SPOT4/HRVIR2 Generic Binary array file (data stored by row), band interleaved by line (BIL) format Data are stored in the order (line1,band1),(line1,band2),(line1,band3),(line1,band4),(line2,band1),... Data format is an unsigned integer (2 bytes) Data Type is litlle endian (Host Intel, ENVI data type=0) Pixels are registered by their upper left corner Envi header file (.hdr) is available GENERAL CHARACTERISTICS Acquisition Date : 13/11/2002 Acquisition Hour : 14:4:22 Samples : 152 Lines : 152 Bands : 4 Solar zenith angle (°) : 29.60 Solar azimuth angle (°) : 56.28 PROJECTION CHARACTERISTICS This image was geo-referenced by SPOTImage (SPOTViewBasic product) Map Projection Name : UTM 20 South Datum : WGS-84 Units : units=Meters Pixel Size (Easting) : 2.0000000000e+001 Pixel Size (Northing) : 2.0000000000e+001 Upper Left Corner Easting : 716286.647 Upper Left Corner Northing : 5904915.537 RADIOMETRIC CHARACTERISTICS REFLECTANCE = DIGITAL COUNT / 1000 TOA reflectance (Top of Atmosphere)