There is no specific feature for General ledger or Cashbook, but you can show e export similar lists using Overview and Search.
Example: Show Cashbook for 2018
- Show Overview
- Choose 2018 from date on the top
- Tap Balance to show the list of 2018
- Search [Cash] from the Search on the top
- Export from the right upper button
*Please note that the seach includes words from summary and other account names.