You colud try to take this formula below as example.
=VLOOKUP(A5,INDIRECT("'"&INDEX(H2:H9,MATCH(TRUE,CO UNTIF(INDIRECT("Sheet"&{2,3,4,5,6,7,8,9}&"!A4:A100 0"),A5)0,0))&"'!A4:B1000"),2,0)
remeber in column H2:H9 list your worksheet names.
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vane0326
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