When you have access to the Update data feature using Excel - you can update a lot of both Style and Item data by importing excel sheets.
Any Company User that needs to use this feature will have to have the role of Import/Export.
It is a rather complex feature and it requires that your data is correct and entered in a very structured way.
We strongly advise that you start out by reading our "Best Practice" section.
We will walk you through how to update data in each section. Please make sure to read the guide lines before you start importing data.