Thanks, but it is the products I want to export and not the orders. There is no date filter for products.
I've isolated the problem just to the product description field.
I can export an XLS spreadsheet of any of the other data, but it just won't work if I include the product description, or even if I just export the product descriptions on their own. it only produces an unreadable corrupt file - presumably the problem is connected with the volume of data - 1,874 products with detailed descriptions for each.
If I just process the information for display only, there is no problem. It displays the descriptions on screen, but I can't find any way of cutting and pasting (Excel comes back with the message it cannot paste the data), or downloading that data so i can't use the information.