It's nice to see you in the Community. I'm here to provide information on how you can upload the budget by using spreadsheet sync. 

To maintain the security of your budget information and keep your company insights up to date, it is important to have Spreadsheet Sync installed on your system. Once installed, log in to Spreadsheet Sync using your QuickBooks credentials. Please take note that only Admin users can access spreadsheet sync. 

Here's also how you can get started with Spreadsheet Sync for QuickBooks Online Advanced to use spreadsheets to create custom charts and graphs using data from QuickBooks.

For further information on how Spreadsheet Sync enables synchronization between Excel and your QBO Advanced account, please see this link: What's Spreadsheet Sync?

Additionally, you may want to check out this article as your reference to guide you in resolving common errors that may occur when utilizing Spreadsheet Sync in QBO: Spreadsheet Sync troubleshooting.
 

Let me know if you have further questions about budgets in QuickBooks. I'm always here to assist. Have a wonderful day.