Hi @oswalmarketing20 , may be you could try with importer data tool https://transactionpro.grsm.io/qbo . You could read the related article : Export import or Import data . Video tutorial : Video 1 or Video 2 .
Comment back if having other questions. Have a nice day.
You may visit the references as provided by @gayatriluthfias20
Another option, consider purchasing a 3rd party conversion service.