When within a transfer or Purchase Order you can create a CSV file that contains the Reorder Number and Quantity or the Reorder Number, Quantity and Cost, this can be done within open or closed orders.
Click the 'Options' Button at the bottom of the page, this will open a menu with the options shown below:
This will then show you that a file has been created:
You can then open the file which should look something like the below:
Or with costs: