I'm converting from CxF from i1Profiler to IT3 in order to use those measurements for printcal, then use those linearization LUT calculations in my particular application. Let's say I know I have 27 wedges per colorant + 1 white wedge. I don't for certain the ratio of the steps. At the moment I don't have any sorting of the wedges nor any wedge data in it3 format, the output is below, but INVALID (ie printcal spits out an error). Help me get this to a valid form of IT3 please. You may be wondering why I'm using this long winded approach: chartread does not behave well with my i1Pro 2! Also, operators here would prefer the visual format of i1Pros measurement GUI (my assumption). I will open another thread pertaining to the chartread errors later. So far my IT3 file looks like so: CTI3 DEVICE_CLASS OUTPUT TARGET_INSTRUMENT GretagMacbeth i1 Pro COLOR_REP CMYK_XYZ SPECTRAL_BANDS 36 SPECTRAL_START_NM 380 SPECTRAL_END_NM 730 BEGIN_DATA_FORMAT SAMPLE_ID, CMYK_C, CMYK_M, CMYK_Y, CMYK_C, SPEC_380,SPEC_390,SPEC_400,SPEC_410,SPEC_420,SPEC_430,SPEC_440,SPEC_450,SPEC _460,SPEC_470,SPEC_480,SPEC_490,SPEC_500,SPEC_510,SPEC_520,SPEC_530,SPEC_540 ,SPEC_550,SPEC_560,SPEC_570,SPEC_580,SPEC_590,SPEC_600,SPEC_610,SPEC_620,SPE C_630,SPEC_640,SPEC_650,SPEC_660,SPEC_670,SPEC_680,SPEC_690,SPEC_700,SPEC_71 0,SPEC_720,SPEC_730 END_DATA_FORMAT NUMBER_OF_FIELDS 41 NUMBER_OF_SETS 109 BEGIN_DATA 1, 3.268272692582, 0, 0, 0, 0.071434, 0.1531015, 0.3381445, 0.5675375, 0.7233245, 0.7813025, 0.807822, 0.8201505, 0.825556, 0.8269425, 0.8241075, 0.8166865, 0.8059565, 0.7915075, 0.769963, 0.738069, 0.6997375, 0.6542855, 0.6040175, 0.5636355, 0.534165, 0.5159645, 0.5008675, 0.4899485, 0.4855655, 0.484961, 0.487866, 0.4946605, 0.500048, 0.4990765, 0.496072, 0.4912945, 0.4836275, 0.4780125, 0.476955, 0.474364 2, 0, 0, 0, 52.120386834701, 0.007293, 0.0076225, 0.0087685, 0.0098205, 0.0102555, 0.0104185, 0.0108295, 0.011044, 0.0113235, 0.0117905, 0.012005, 0.012316, 0.0127045, 0.013083, 0.0135035, 0.013801, 0.014171, 0.0145595, 0.0149185, 0.015359, 0.015822, 0.016326, 0.0167635, 0.0172445, 0.017682, 0.0181775, 0.018668, 0.019137, 0.0195715, 0.0201285, 0.020671, 0.0213015, 0.0218045, 0.0222955, 0.0225065, 0.022433 3, 0, 15.314327886324, 0, 0, 0.081418, 0.1536065, 0.31603, 0.501204, 0.614077, 0.630654, 0.60759, 0.5739405, 0.5386145, 0.501451, 0.457359, 0.4116635, 0.375618, 0.341264, 0.288431, 0.2351755, 0.2181425, 0.2277585, 0.226976, 0.2379525, 0.3148625, 0.4658755, 0.6175005, 0.7175815, 0.769319, 0.7923715, 0.8018465, 0.8054975, 0.802614, 0.7958745, 0.796192, 0.7999, 0.8025175, 0.8023905, 0.79511, 0.7748275 4, 0, 0, 0, 33.83086362135, 0.0055865, 0.0099345, 0.0128835, 0.0145245, 0.0164495, 0.0174855, 0.0179115, 0.018544, 0.019168, 0.019871, 0.0204635, 0.0209435, 0.0216375, 0.0223935, 0.0231265, 0.023884, 0.0245715, 0.0252665, 0.025931, 0.0266855, 0.027455, 0.028317, 0.0291135, 0.0298865, 0.0306305, 0.0313585, 0.0321735, 0.0329815, 0.0337115, 0.0342915, 0.035239, 0.036014, 0.03686, 0.0376035, 0.0377435, 0.037484 5, 91.922000827085, 0, 0, 0, 0.0110955, 0.0280595, 0.077131, 0.152517, 0.217499, 0.2942985, 0.410081, 0.4957385, 0.525675, 0.5290085, 0.50419, 0.460013, 0.401391, 0.326491, 0.239801, 0.1546785, 0.085976, 0.0393505, 0.015166, 0.007075, 0.0050395, 0.0046445, 0.0046475, 0.0049675, 0.0051795, 0.0052585, 0.005271, 0.0053255, 0.0055005, 0.0055115, 0.0054295, 0.0055125, 0.0058135, 0.0067395, 0.0078155, 0.009228 6, 0, 0, 0, 43.395745803855, 0.006985, 0.008648, 0.0110575, 0.012482, 0.013491, 0.0141505, 0.0149965, 0.0150965, 0.015387, 0.0160185, 0.016667, 0.0169775, 0.017463, 0.01802, 0.0186165, 0.0191345, 0.0195645, 0.020119, 0.0206115, 0.021246, 0.021759, 0.022416, 0.0230145, 0.023676, 0.024273, 0.0248855, 0.025419, 0.026079, 0.026653, 0.02724, 0.0279025, 0.0286615, 0.0292675, 0.029986, 0.0303675, 0.030276 7, 33.83086362135, 0, 0, 0, 0.0257035, 0.068699, 0.1735315, 0.311179, 0.413597, 0.497486, 0.597002, 0.6616185, 0.6823105, 0.683833, 0.6654865, 0.63189, 0.58466, 0.519378, 0.4353005, 0.3409355, 0.249922, 0.167274, 0.100407, 0.059745, 0.0394945, 0.029959, 0.0240205, 0.020758, 0.020034, 0.020551, 0.0221395, 0.0255105, 0.029609, 0.0314135, 0.029919, 0.027016, 0.024055, 0.022955, 0.025307, 0.030391 8, 0, 0, 3.268272692582, 0, 0.078869, 0.1472775, 0.2852245, 0.436919, 0.517874, 0.525772, 0.530125, 0.5252575, 0.5245785, 0.577769, 0.682854, 0.759656, 0.7915945, 0.805739, 0.8134555, 0.816412, 0.818059, 0.8174785, 0.8142645, 0.814866, 0.814005, 0.814967, 0.814473, 0.8133975, 0.812064, 0.8102595, 0.808754, 0.8075685, 0.801718, 0.7929405, 0.794547, 0.799415, 0.8020575, 0.8012945, 0.7915695, 0.7682295 9, 0, 0, 0, 56.604254196145, 0.0058165, 0.007257, 0.0087925, 0.0087685, 0.0092055, 0.0095195, 0.0098245, 0.01008, 0.010321, 0.0107035, 0.010822, 0.011073, 0.011425, 0.011758, 0.0121475, 0.0125015, 0.0127835, 0.013063, 0.0133785, 0.0137355, 0.014232, 0.014693, 0.015148, 0.015545, 0.015859, 0.0162455, 0.016709, 0.0171985, 0.017644, 0.0180375, 0.018503, 0.018984, 0.0194485, 0.0198795, 0.020089, 0.019815 10, 0, 0, 0, 100, 0.002482, 0.003749, 0.004561, 0.004249, 0.004181, 0.0045285, 0.004612, 0.004689, 0.004664, 0.0047375, 0.0047605, 0.004722, 0.0048675, 0.004859, 0.0048725, 0.005001, 0.004958, 0.004938, 0.004877, 0.004851, 0.0048315, 0.004892, 0.0048785, 0.0049045, 0.00491, 0.004782, 0.0047505, 0.004796, 0.004734, 0.0047045, 0.004736, 0.0045485, 0.004646, 0.0046015, 0.0042485, 0.0036975 Etc...... END_DATA Thank you!