J3: =INDEX($C$3:$F$11,MATCH($J$2,$B$3:$B$11,0),ROWS($J$3:J3))
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This assume the Fields are in the same order as the data Area
or
J3: =INDEX($C$3:$F$11,MATCH($J$2,$B$3:$B$11,0),MATCH($I3,$C$2:$F$2,0))
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This allows the Fields to be in any order