Create and edit Product attributes using CSV files.
Use composer to install Barbanet_SampleAttributeInstaller.
composer require barbanet/module-sample-attribute-installer
Then you'll need to activate the module.
bin/magento module:enable Barbanet_SampleAttributeInstaller
bin/magento setup:upgrade
bin/magento cache:clean
bin/magento module:uninstall Barbanet_SampleAttributeInstaller
If you used Composer for installation Magento will remove the files.