There is no upload function for specially designed for storage bins.
You would need to use LSMW or batch input recording to do so.
Usually bins are nothing else than coordinates in a warehouse, you define a template in LS10 and can then create the bins based on that template.
In a development system you can do it directly from LS10, while in for a production system you have to transport the template from Dev to Prd and then execute LS05.
How do define such templates is pretty well explained in help.sap.com and more than 100 discussions here in SCN, so I will not repeat it again, please use the search function on top right of the forum