# match function incorrectly returns #N/A [closed]

Here is a copy paste of my malfunctioning match formula

MATCH(W7,'file:///P:/Calculatons/Eccentric weld tables.xls'#$'CISC 3-28'.$A$21:$R$21,0)

This formula works fine on row 6 of my sheet (lookup W6), but with a copy paste of the formula from rows 7 to 14, it returns #N/A randomly on some rows.

To trouble shoot the formula I copied it to a free cell. Result: #N/A. If I manually change W7 to 0.3 (the value in cell W7) it returns the correct result.

If I change the search type from 0(exact match) to 1(sorted list representing the correct sort direction) the formula will return 7 as the value (correct) if I have the 0.3 entered manually into the formula. If I change the formula to call cell W7, and manually enter 0.3 in cell W7, the formula will return 6 (incorrect)

This tells me scalc is somehow modifying the value being called into the match formula

What can I do?