To convert QuickBooks Desktop to QuickBooks Online, follow these steps:

Prepare Your Desktop File:

Update your QuickBooks Desktop to the latest version.
Backup your company file to avoid data loss.
Sign in to QuickBooks Online:

Create a QuickBooks Online account or log in to your existing one.
Export Your Data:

In QuickBooks Desktop, go to Company > Export Company File to QuickBooks Online.
Follow the on-screen instructions to sign in to your QuickBooks Online account.
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