Microsoft Text Driver Connection

I'm having trouble setting up my queries using microsoft text driver to pull from a TSV text file. When I do the query:

SELECT EntryDate, Lot, Batch, Product, Operation, Recipe, Route, Entity, TimeNum, Flag, Template, Seg, Diagnostic, Val FROM Excursion.txt

I pull everything fine with no issues, but when I try to add a condition as such:

SELECT EntryDate, Lot, Batch, Product, Operation, Recipe, Route, Entity, TimeNum, Flag, Template, Seg, Diagnostic, Val FROM Excursion.txt WHERE Flag= " & Flag1

I get: Code: