I had a same question and found a solution through Pads Layout Script Wizard.
Run Pads Layout Script Wizard in Tools-Basic Scripts.
Select Next and choose Microsoft Excel and Next, PCB-Based Report and Next.
Then, select Connections and Next button, General Connection properties in table format and Next,
Then, Add all Connection Properties to the right. Select Net and move up. Next.
Make Output Report Header with "Pin-Pair Length Report" and Next.
After Excel file created, you need to sort the file based on Net name and connection.