Hello there, sultanstatik,
Just a heads up, we can only export your reports and lists. For the rest of the data, you'll have to manually enter them.
Furthermore, please note that there might be features from QuickBooks Online US that's unavailable in QBO Singapore.
Here's how to export:
Once exported you can import the file to QB Desktop, and from there with the help of Odyssey, transfer your data from QBDT to QBO SG. With this, I recommend completing the conversion form and send it by clicking the Start Conversion button. This is to ensure we’re able to migrate your data swiftly and accurately.
Let me know if you need further assistance, I'll be more than willing to help.