QuickBooks desktop edition does not include file attachments when it makes a company backup data file. This will cause issues if the files need to be installed on a new computer or saved as part of normal data file backups.
The attached files are stored by QuickBooks in a folder named “Attach” with multiple subfolders.
The company file and Attach folder can be found by selecting Company > Documents > Repair Attached Documents Links.
Click the Open Company File Folder button to locate the Attach folder and company file. The Repair Links button will remove invalid attached document links.