Yes Quick Books Desktop still supports importing . I IF files for inventory adjustments, but with a few important details to keep in mind.

I IF imports can update inventory quantities through the Inventory Adjustment transaction type; however, Intuit has deprecated some legacy I IF structures, so you’ll need to ensure your file is formatted correctly using the latest  I IF import standards. It’s always best to test on a backup company file first, since I IF imports bypass some data validation.