Conculation What is an application letter?

2. Open Your Application Letter Right
Do you know why patterns appeal to so many people?
They’re consistent. Seamless.
To achieve a similar effect with your letter, mirror the design of your resume in the header section. That way, you’ll make your application more memorable and cohesive. (And simultaneously, you won’t risk making a mistake in your contact information.)
Later, a challenge awaits. Or not? It depends.
You’re about to address your hiring manager, and if they gave their name in the job ad, you’re lucky. But if they have not, then the hunt is on.
Look for it on the company’s LinkedIn page or website. You can even call the place and ask, yet get prepared to talk directly with that particular person.
It’s important because you don’t want to address the letter to whom it may concern. It’s heartless (and almost inhumane, as you’re not addressing a person).
To avoid that, in case you’ve searched through hills and valleys and found nada, write “Dear Hiring Manager” instead. But remember, it’s your last resort.
And now—
The opening.
There are several strategies you can use to start your letter. Among them are:

• 
  Boasting about your most significant yet relevant achievement
  
• 
  Expressing enthusiasm towards joining
  
• 
  Commenting on the recent company’s development.
  

There can be thousands of reasons why you’re applying for a job, so first and foremost, stay true to yourself and don’t look for inspiration elsewhere. If you’re having a hard time coming up with something, the above have proved successful many times.
See the below application letter sample to see what I mean by successful job letter introduction:
Application Letter Sample [First Paragraph]

RIGHT
Jerome S. Quon Event Planner 1800 Ryder Avenue Seattle, WA 98101 425-286-5792 [e-mail] Seatle, 02/10/2022 Donald Lavender Event Manager Evenue 4376 Hillcrest Drive Seattle, WA 98161 Dear Donald, I was thrilled to hear you opened a post for an event planner. As an office assistant in Staff, I single-handedly organized a year-end party for the entire office, deemed the most entertaining and successful event the employees had a chance to attend. (Even finance came.)
WRONG
I’ve been an office assistant for 5 years, so I have experience doing multiple things simultaneously. I have deep knowledge of planning and organizing because I manage my boss’s calendar. Plus, I…

Yikes! 
The second one just won’t do. It’s the opposite of success. 
Your opening paragraph needs to compel the reader, make them eager to carry on with your letter, not move it aside to the boring pile.
It’s important you remember there’s no “I” in “employers must be charmed by your paragraphs,” so drawing attention from the employer and their needs only asks for ignorance. Build your sentences without much use of the “I” pronoun, and you should end up just fine.
Now, I won’t let you think that the same rules apply to inexperienced candidates writing their application letters.
Employers look for your motivation to grow and learn instead of accomplishments. However, they’re indeed helpful in convincing them of your fit.