All quotes downloads appear corrupted regardless of whether they are downloaded from the pc or from the mobile.

I appreciate you letting us know that you're getting the same result across both your desktop and mobile device, jbadilla.

To help us narrow this down, can you describe the appearance of the downloaded transaction when you open the file?

I'd also recommend reaching out to our live support teams for QuickBooks Online International. They have additional tools to quickly determine what's causing the quotes to appear corrupted when downloading them.

Here's how to reach out to them:

1. Click the Help menu in the upper-right-hand corner of QBO.
2. Proceed to the Assistant tab.
3. Type in "contact support" in the chat box and press Enter.
4. Choose Contact Support Team at the bottom of the screen.
5. Click Chat.

  The Community is always here if you need anything else.