You can export a spreadsheet from QBO and import via spreadsheet into Square but you’ll have to modify the format of the sheet to Square’s format. Instructions to import/export from Square can be found here:

<a rel="nofollow" target="_blank" href="https://squareup.com/help/us/en/article/5153-import-items-online">https://squareup.com/help/us/en/ar...>