File transfer is the process of moving data from one computer or device to another. This can be done over a network, such as the internet, or through physical means like USB drives. Common methods include using email attachments, cloud storage services like Google Drive or Dropbox, and file transfer protocols like FTP. During file transfer, the data is packaged into smaller units called packets, which are sent to the destination and reassembled. Security measures, such as encryption, can be applied to protect sensitive information during the transfer. This ensures that files remain confidential and intact throughout the process.