filing cabinet 
noun
A large piece of office furniture, typically made of metal, with deep drawers for storing documents.In this day and age, managing program data and documents with folders, binders and filing cabinets is not effective....
- I glanced across the office and noticed that the second drawer of her filing cabinet was open.
- ‘Hold on,’ the Major said, pushing his wheeled chair back to one of the many filing cabinets in the office.