I face a problem for bulk listing with dropbox link please help me

[shivarudraksha]

Dear Sir

How can upload bulk product with dropbox image link , please provide me best solution this query 

I am new user for magento I watch some video in Youtube but i not understand this function please provide best solution of this error my email Id: astrolalit84@gmail.com, Contact no. +919313929085

Thanks

Shiva Rudraksha Ratna