To send multiple files or and entire file folder, please compress it
to an archive format (zip, 7z, bz, rar, etc.)
The simplest way to compress/zip a file(s) is to right click on the file(s) or folder
and choose Send To -> Compressed Folder
For large amounts of data we recommend archive files which are split into volumes.
This can be easily accomplished using freeware such as 7zip or other similar applications.