Multi-vendor extension with a comprehensive bulk-upload module.

[rj_rohitjain]

Hi, I am looking for suggestions on multi-vendor extensions:

- I am looking for a good multi-vendor extension with a comprehensive bulk-upload module. The bulk upload module should support multiple sizes, colors and multiple images for the same item

- Would appreciate if you could recommend both free and paid extensions

- Would appreciate thoughts from someone who has tried more than 1 extension. A comparison based on live-usage would be extremely valuable

- Will other 3rd party android app extensions (native) work with these multi-vendor extensions? Or will I necessarily will need to buy the Android app extension from the same vendor?

Thanks for your help!

Best.

[AlexMageCloud]

This is probably the best multi-vendor solution. It has the feature that you're looking for: 
http://www.magentocommerce.com/magento-connect/multi-seller-marketplace.html

As for the free solutions - I'm not sure that there are any good ones, worth recommending. This is a very complex product, so usually only the paid versions are the ones worth looking at. 

[webkul]

YOu may user webkul marketplace extension https://store.webkul.com/Magento-Marketplace.html

Thanks