Once you export your inventory list to Excel, QuickBooks will only download its written details such as product/service name, sales price, sales description, etc. However, the images that are attached to them will be excluded.
Although, you can still import these pictures separately from the program. Just go to the Attachments list and extract these files from QuickBooks. Here's how:
Go to Settings and select Attachments.
Choose the attachments that you wanted to export.
Click the Batch actions drop-down list and select Export.