HOW DOWNLOADED

Hi Servey, 

Welcome to the Box Community, I'm happy to help!

When you download a folder from Box, the folder will download to your computer as a zipped file. You will have to unzip the folder once it has successfully downloaded to your computer. 

Furthermore, Box measures bandwidth usage based on downloads from open access shared links. All downloads from any public shared link count towards the bandwidth limit. Depending on the size of the files being shared and the frequency of downloads, you can reach this limit quite quickly based on the file format (GIF, FLV, MP3, and so forth). Click here for more info.

For more information on Common issues with download in Box, please take a look at this article: https://support.box.com/hc/en-us/articles/360044194313-Understand-How-Box-Measures-Bandwidth-Usage 

Thanks for posting and please let us know how else we can help!

Regards,