QB desktop - where are the export docs stored?

Hello, @alexdolgin. 

QuickBooks stores and saves document the same location of your company file. If the option to print the documents is missing, we can perform these in the Customer Center or each of your customers instead.  

We can print shipping labels using your customer's info from a receipt, sales order, or the customer center or print individual labels from your customer list. 

For us to print a shipping label from the customer center, perform the following: 

1. From the Customer dropdown list, select Customer Center. 
2. From the Reach Out to Your Customer section, click Print mailing labels. 
3. Use the filters to select which customers you'll print the labels for, then choose Next. 
4. Clear the checkbox of the customers you don't want to print mailing labels for, then click Next. 
5. Choose the printer you use to print labels.
6. Select either Preview or Print.
7. Choose the Label Type, then click Continue.
8. If you selected Print the labels will print, if you selected Preview you’ll see how the labels will look after printing. If everything’s correct, select Print.

To print a shipping label for individual customers, follow the steps:
 

1. Go to the Customer List.
2. Select the customer you’d like to print the label for, then select Edit.
3. From the address section, select Print Label then, Print.

Here's an article for more details: Print shipping labels in QuickBooks Point of Sale. 

Additionally, visit this article to learn about the offered shipping options and how we manage orders: Learn how we ship and handle orders for checks and other supplies. 

If you have further queries about managing your sales forms in QBO, please leave a comment below. Have a good one!