If you adding functionality to your posts using Advanced Custom Fields plugin.
Handful when publishing some posts with attachments whole year and once year you need to download all attachments to send them to third parties..
You are prompted to select post type, publish date range and ACF filed group you want to extract attachments from..
Then if there is something to download you can hit the button and archive file with attachments is prepared to download..
After installing and activating plugin, you will find new section Tools called Attachments..
You can use it for downloading all attachments specified by ACF file fields you want..
All you need to do to get you attachments is.
If there are more ACF field groups that contains file field you can select one of them.
Archive ZIP file will be downloaded or you can use link in review under Download button..
You can find this plugin on GitHub, where you can report issues, review code and commits.
Read more