Use the indefinite article because "IIF" is pronounced letter-by-letter ("Eye-Eye-Eff"). Since the sound starts with a vowel, "an" is correct.

If you still have access to the source data in QuickBooks, it is often better to export to Excel directly rather than through an IIF file.

Convert Iif File To Excel Extra Quality

Use the indefinite article because "IIF" is pronounced letter-by-letter ("Eye-Eye-Eff"). Since the sound starts with a vowel, "an" is correct.

If you still have access to the source data in QuickBooks, it is often better to export to Excel directly rather than through an IIF file. convert iif file to excel