Move the files to shell directory of your magento installation.

In the export_attribute_set.php file

	$attributeSetNames = array(
		'Default'
	);

Add the attribute set that u need to export

To Export run the script

	
	php export_attribute_set.php

It will create three csv files "importAttributeSet.csv" "importAttribute.csv" "product.csv"

To Import Arrtibute and Attribute set

	
	php import.php

To Import Product use magmi

To increase the import performace and also to fully support magmi run

	
	php split_products.php

This will split the product csv into smaller chunks of csv (count of 500 per file) and then modifies the files to support magmi