Navigate to [https://mkpartners-a-dev-ed.lightning.force.com/lightning/setup/DataLoaderIo/home](https://mkpartners-a-dev-ed.lightning.force.com/lightning/setup/DataLoaderIo/home)

Click "[Dataloader.io](http://Dataloader.io)"

Click "Launch [dataloader.io](http://dataloader.io)"

Switch to tab "[https://mkpartners-a-dev-ed.my.salesforce.com/HelpAndTrainingDoor?version=2&resource=https://dataloader.io/](https://mkpartners-a-dev-ed.my.salesforce.com/HelpAndTrainingDoor?version=2&resource=https://dataloader.io/)"

Mass Update Record with DataLoader.io