What is passive or active in a formal business letter?

In a formal business letter, active voice emphasizes clarity and directness by placing the subject at the forefront of the sentence, making the message more engaging. For example, "The manager approved the proposal" is active. In contrast, passive voice often obscures the subject and can make the writing less direct, as seen in "The proposal was approved by the manager." While passive voice can be useful for focusing on the action rather than the actor, it is generally more effective to use active voice in business communication for clearer and more impactful messages.