It will probably work most of the time. But you will get the wrong result in some cases. For example if $_ is com, and $fillarr1[14] is computer you will get a match even though the two words are not exactly the same. You will also run into trouble if $_ contains special characters.

There are ways to solve those issues, but the best solution is to not have " inside $fillarr1[14]. Now either you remove them, or you try to understand how Text::CSV works and put the data into @fillarr by using it.