This will give you an export of all jobs, clients or materials in MS Excel file and you should be able to filter data to display as you required. You can activate this Advanced Reporting Pack under the ServiceM8 Add-ons and it's free.
The Advanced Reporting Pack is consist of:
1. Job Export Report
2. Client Mailing List
3. Material Export Items
Here's how you can activate them:
Click ServiceM8 Add-ons
From the ServiceM8 Add-ons page, scroll down until you find the Advanced Reporting Pack add-on