You can export the Make/Model/Year add-on data via the Catalog -> Export section:
If you need to include product SKU data into the export file, use the export option "Products with Make/Model/Year/Engine" (products-mmy-YYYY-MM-DD.csv file format). The export option "Make/Model/Year/Engine listing" gives all the same export data except the product SKU (mmy-YYYY-MM-DD.csv).
Data import for the Make/Model/Year add-on can also be done in two different ways:
Data Import With Product SKU
Data import that includes product SKU does not require a preliminary set-up of the Make/Model/Year/Engine add-on ( i.e., you may not configure the add-on levels) and can be done using the products-mmy-YYYY-MM-DD.csv file format.
The import procedure will add the level names and their respective values to the Catalog -> Make/Model/Year/Engine section of your store Admin area automatically from the file you imported.
The fields that you should add to a products-mmy-YYYY-MM-DD.csv file are as follows:
If you already have the addon level structure configured, the fields’ names in the products-mmy-YYYY-MM-DD.csv file should correspond with the level names you set on the Make/Model/Year addon settings page.
If the value "ALL" is specified for a field, the SKU will be added to all existing level values (works for predefined levels only).
e.g. make/model/year : all/A5/2012
In this case, new items will be added to all existing Make levels (make1/A5/2012, … makeNN/A5/2012). You can even import values as make/model/year: "all, all, all," and the SKU will be added to all existing Make/Model/Year levels.
If you need to import a product in several but not all levels, you will need to duplicate SKU for each particular make/model/year level.
Data Import Without Product SKU
Data import that does not include product SKU do require a preliminary set-up of the Make/Model/Year/Engine add-on (i.e., the add-on levels must be pre-configured) and can be done using the mmy-YYYY-MM-DD.csv file format.
The fields that you should add to a mmy-YYYY-MM-DD.csv file are as follows:
The fields’ names in the mmy-YYYY-MM-DD.csv file should correspond with the level names you set on the Make/Model/Year add-on settings page and have the ACTUAL level values (the value ALL can’t be used here).