There are a few different reports that can be run to pick up the WIP records or you can print the Case History/Billing Guide by filtering the types or dates:
In the Advanced Report Execution there are various Case History reports, these are in the History folder.
There is one called Fee Earner Profitability that shows the actual against the time done on the file.
You can also pick up the Fee Earner WIP Audit report this is in the WIP folder under Accounts Standard reports folder.
There is an option to be able to put a date range on the Billing Guide in the Proclaim Desktop or the Client Matter Enquiry and then print the time.
The above can be done via the Case History and can be also exported to Excel.