I have written a very simple script to perform a useful function for me. I figured I’d share it so that others can make use of it.
If you have a CSV file with the first row containing headers and the subsequent rows containing data that you wish to update along with an ID column, then this will work for you without any issues. If your primary key is different or you wish to match other criteria you may need to adjust the script a bit. This does not facilitate upload but only uses a csv file residing on the same directory as the script.