My NetGalley file isn’t on my Kindle anymore, and the book is archived - where can I find the file?

Documents sent through Amazon's Personal Document Delivery Service are now automatically archived in your Kindle Library (you can control this from the Content Library page in your Amazon account). So even if you no longer can press the Send to Kindle button in NetGalley, you should have access to the file in your Kindle account.

Go to your Content Library in your Amazon account, then under Your Content filter to see Docs and if the book appears here, click on Actions and then click on "Deliver" and select the Kindle device/app you're using. Your device will sync wirelessly and the book will show up on your Kindle device or app.