Grouping imported .csv rows

Grouping imported .csv rows

I use an industry specific platform to accept orders, process and fullfill the service. Each order includes a varying number of services, which are listed on their own row in .csv export. How do I get Zoho Books to group each list of unique services (including fees) together under a single Order/File Number?  Note: The example below is just one order/file, some client invoices have hundreds.

How do I turn this:


Into this (or something similar):