Can I download the expense slips already uploaded?

I can guide you on how to download the expense slips, @andri.

You can download them one at a time or in bulk. Let me show you how:

1. Select the Settings ⚙ menu.
2. Under Lists, choose Attachments.
3. Find the receipt you want to export. 
4. In the Action column, select Download.
5. The receipt opens in a new browser window. To save the receipt to your computer, right-click and click Save As from the browser’s pop-up menu.

For more insights, please see this article: Export your receipts in QuickBooks Online. It also includes steps on how to export multiple receipts all at once.

Fill me in if you have other questions about downloading receipts in QuickBooks. Have a good day!