The Tencia import file can be modified to suit, however the default format is based on the ArrowLink format as follows


Format CSV


#FieldNotes
1Order Date
2Customer Code
3OrderNumber
4Delivery Date
5Customer Name
6Delivery Address 1
7Delivery Address 2 
8Delivery Address 3
9ItemNumber
10Quantity
11Selling Price
12Stock Location
13Delivery Address 4
14Stock Description
15Order Description Line 1
16Order Description Line 2
17Order Description Line 3