Below is an explanation of the format of the instance definitions (text files). Note that tabulator is used as field separator rather than spaces. 

Customer 0 is the depot.  For pickup orders, the PICKUP index is 0, whereas the DELIVERY sibling gives the index of the corresponding delivery order. For delivery orders, the PICKUP index gives the index of the corresponding pickup order.

For examples of solution specification files, see for instance the 100 customers page. The format is identical to the one used for VRPTW.