Category Nuances for file_transfer:

• useful,
• logical,
• remote,
• reliable,
• wan,
• necessary,
• electronic,
• ongoing,
• risky,
• secure,
• important,
• over,
• long,
• routine,
• external,
• extra,
• basic,

Simple Categories for file_transfer:

• operation,
• activity,
• delivery,
• work,
• message,
• operations,
• action,
• exchange,
• information,
• thing,
• process,
• communication,
• event,