Store Commander includes a very powerful CSV Export tools that you can customize to fit your needs.
For example, you can export the products of your shop associated to a specific manufacturer/brand.
Once you have created your script within the csv export window, and have included the Manufacturer field in your mapping, you can use the Modifications column to enter a specific formula.
In the below example, I want to export products associated to the brand name Studio Design.
To do so, I insert the following formula in the Modifications column for the field Manufacturer:
=( '(x)' == 'Studio Design' ? '(x)' : '_DONOTEXPORT_')
Your exported file will then includes only products associated to that specific manufacturer.
The DONOTEXPORT formula can be used on various fields within your export mapping - refer to the article below to see different possibilities.
For the detailed procedure to create an export script, please refer to the article below.