{"text_format":"3","workbook":"xls","n_sheets":3,"sheets":["Sheet1","Sheet2","Sheet3"],"read":"whole","date_system":"1900","formulas":"cached_only"}

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[]
["price tag",10,30,50,70,90,"   Ref Level","      Gain"]
[]
[]
[]
[]
["Trackball",8.64,11.82,13.45,21.18,26.18,8.382877526753866,0.841]
["Keyboard",16.09,26.82,29.27,34.55,55.64,23.139158576051777,0.46349999999999997]
["Book",12.82,16.18,15.82,19.27,30,13.389423076923077,0.8320000000000001]
["Chocolates",9.55,10.64,12.45,13.27,20.64,9.524061343204654,0.9455]
["1998 wine",8.64,14.45,12.55,15.45,27.91,8.083157152924596,0.7095]
["1996 wine",11.73,22.45,18.09,24.55,37.55,13.72844827586207,0.4640000000000001]

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