TL:DR; Need to import transactions, but the format is not supported? Convert QBO to QIF and import into Quicken, Quicken 2007 Mac, LessAccounting, YNAB, NetSuite, MYOB, AceMoney.
Download QBO2QIF Shareware - Rating: 4.67
Accounting and Distribution ERP Software: General Ledger, Accounts Payable, Accounts Receivable, Inventory, Purchase Orders, Sales Orders and Quotes, Sales Analysis, and Bank Reconciliation.
TimeLive - Time And Expense Management for time tracking, employee timesheet and expense tracking. On-premises and online cloud (Online timesheet) version. TimeLive can be installed at local system as well as online
Finally, the solution to import your transactions. Convert QIF to QBO and import into Quickbooks, (PC/Mac/Online). Created QBO files are regular Web Connect files for Quickbooks. Review transactions in a readable view before converting.