Abstract: The invention enables a user to create a saved Version of a file which gives (besides the usual content access and format specifications) information in a Wrapper which permits it to be transferred while maintaining a provenance relationship with other files and cryptographic relation with a server. Data in the Wrapper may include content location, Collaboration identity, provenance data, a site location for provenance data, data concerning necessary harmonisation, cryptographic or password data, data enabling the recipient to join a web service supporting the Collaboration, and other such data enabling web-supported interaction with the content. Upon opening the Version the user sees and can modify or re-transmit the content in a display that makes use of the Wrapper information to enable and organize access to the content, to the provenance information and related files, or other web-enabled interaction with the content and the Collaboration.