Migrating files into a new structure involves deliberately relocating and reorganizing existing files and folders according to a predetermined plan. It goes beyond simple copying or moving by requiring analysis of the current organization, defining the desired structure, and systematically transferring files while preserving their integrity and relationships. This differs from basic file management which is often more ad-hoc, lacking a comprehensive blueprint for long-term scalability and clarity.

Common practices include restructuring personal photo libraries sorted by years into themed albums like "Vacations" or "Family Events". In a professional context, migrating project documents stored chaotically across drives into a standardized folder hierarchy—such as /Client/Project/Phase/Docs—enhances team collaboration. Tools used range from basic OS file explorers for small tasks to dedicated migration scripts or specialized software for large-scale projects involving thousands of files.

The primary advantage is significant efficiency gains through improved searchability and workflow, while ensuring compliance needs are met. However, risks include data loss, broken links, or user confusion if executed poorly. Essential steps involve thorough planning, creating backups beforehand, and testing the migration process with a subset of files. Incremental migration over phased timeframes can minimize operational disruption. Automated tools are increasingly assisting this complex process.