Help finding software to manage several file types on touchscreen?

My company still does a lot of things the old fashioned way and I was wanted to kind of update things. We have binders for each job we work on filed away in several file cabinets. Each binder holds several pages of information that gets periodically updated as well as references to certain files on our network. My thought was to combine all these into an easy to use tablet which a touch interface. Allowing the user to select a job by customer from a list and then have it layered onwards with all the documents, image files and spreadsheet access in one tidy area. It would need to work on android OS and interface with the network. But our electronic files are simple and not in any kind of "data base" outside of separate folders. Most of the information viewed wouldn't even need to be editable, although having the capability to insert simple annotations and "markings" would be awesome.

Does anyone know of a software database, program, or something that is accessible from a touch screen and that can tie together several types of files?:)

Thank you very much!

Mark