Python script to download Salesforce Files (aka ContentDocument). It's using ProcessPoolExecutor to run downloads in parallell which makes the experience nicer if you have a large number of files.

In a very non scientific test 1614 files (3.23 GB) were downloaded in under 6 minutes.

Download the script, satisfy requirements.txt and you're good to go!

simple-salesforce (https://github.com/simple-salesforce/simple-salesforce)

1. Copy download.ini.template to download.ini and fill it out
2. Launch the script

usage: download.py [-h] -q query

Export ContentVersion (Files) from Salesforce

optional arguments:
  -h, --help            show this help message and exit
  -q query, --query query
                        SOQL to limit the valid ContentDocumentIds. Must
                        return the Id of related/parent objects.

python download.py -q 
"SELECT Id FROM Custom_Object__c WHERE Status__c = 'Approved'"

This was a small implementation for a customer that I decided to clean up and put on GitHub, I guess there are tons of bugs in here so please feel free to contact me if you find any of those.