Currently, from Stock Central is not possible to filter by locations. However, you could use our premium add-on ATUM Export PRO to do it.
With this add-on you can export almost any kind of data in your site, in this case Multi-Inventory products, and also you can filter the fields, so you can export all the products with multi-inventory, or just those with the location you want to export.
I leave you here the documentation of the add-on where you will find useful info about how it works: https://forum.stockmanagementlabs.com/t/atum-export-pro-documentation
And the link to the demo site in case you want to try the free trial: https://stockmanagementlabs.com/addons/atum-export-pro/