Hi jawad-khan-accou,
Welcome to Community! QuickBooks makes uploading your transactions a breeze. I'd be glad to provide more information for both products, so you can get back to business as soon as possible!
QuickBooks Online has a built in import tool, for a seamless transition. It's important to review the example file and ensure you prepare your .csv file as outlined in this helpful guide. For QuickBooks Desktop, you can use IIF files to import lists and transactions.
Should you require additional assistance with importing your data to QuickBooks Online, please don't hesitate to contact us outside of Community. Our Customer Care team will have the ability to work with you in real time and ensure your QuickBooks goals are complete in a timely fashion.
Schedule a Callback or start a Chat: click (?) Help in the upper right in QuickBooks Online > enter "Contact support" > hit Contact Us > provide a brief summary of your situation > hit Let's Talk > choose Get a callback or Start a Chat.
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Support hours are from Monday to Friday between 9 a.m. and 8 p.m. ET.
Feel free to reach back out with other questions. We'd be happy to help!
