Enhance our existing bespoke Price Manipulation program

We are a food-based family business trading in over 2K products. Last year we had a price manipulation program written for us, named Price Modifier, whereby we export data from our QuickBooks accounts (Product Code, Cost, Price Base etc.) into Price Modifier via a CSV file in order to manipulate the cost price at a pre-fixed rate into three price levels. Selected data can then be re-exported to various applications that require a relevant Product File. We now wish to enhance that program with additional data, some of which will have to be entered direct in to Price Modifier. This additional data includes Shelf Life (Chilled, Frozen and Not Applicable [third party pre-packs]) and Ingredients (Allergenic ingredients to be automatically displayed in BOLD text)