It would be convenient to have the folder structure in a Refworks collection of references able to be exported as an RIS file and then read the RIS file back in with the folder structure fully restored. This could be implemented as an RIS extension with a new record type storing the folder or can function within RIS by treating the folder name preceded by a specified text string indicating that the key word is actually a folder. For example, an extension would be creating a new record type such as FF for file folder and code the folder name on that record. FF /myfolder. Or using a special code with KW. KW -REFFOLDER- /myfolder.