Hello, on this zip file you have : SPOTSonianforest040728_3x3TOA.bil Subset of the SPOT4/HRVIR1 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 : 28/7/2004 Acquisition Hour : 10:37:49 Samples : 152 Lines : 152 Bands : 4 Solar zenith angle (°) : 34.58 Solar azimuth angle (°) : 149.59 PROJECTION CHARACTERISTICS This image was geo-referenced by SPOTImage (SPOTViewBasic product) Map Projection Name : UTM 31 North Datum : WGS-84 Units : Meters Pixel Size (Easting) : 2.0000000000e+001 Pixel Size (Northing) : 2.0000000000e+001 Upper Left Corner Easting : 597985.624 Upper Left Corner Northing : 5626512.083 RADIOMETRIC CHARACTERISTICS REFLECTANCE = DIGITAL COUNT / 1000 TOA reflectance (Top of Atmosphere)