Product import - price correction needed

[martinkay]

Hi all

I have just imported about 200 products from a CSV file, however the previous shop package stored prices as tax inclusive, and the column in the CSV file has gone in as tax exclusive, so Prestashop has added UK tax on to all those imported products making them 20% more expensive. What is the best way to correct this? Delete the products and re-import, having first devalued the prices in the CSV file to tax-exclusive values, or is there a quick way to do a global edit on all products (fortunately they are all in the one category). I don't fancy having to go through them all one by one

Thanks
Martin