If you have a large number of pricing rules, they can be easier to manage in a spreadsheet.
There are 2 ways to upload a pricing rules csv file:
Upload a file to the repository
Use webdav to connect your computer to a remote server for file viewing and transfer
Either way, your file must be in a specific format. The file name must be sitename-ecomstore-rules.csv, e.g. ecommerce-store-ecomstore-rules.csv
The csv is parsed in the following order.