Need Help with HR Letter Formats: Can You Share Templates for Common Scenarios?

Dear Sir,

Would you please provide me with some HR correspondence letter formats as follows:

1. Joining letter format
2. Resignation letter format
3. Appreciation letter format
4. Offer letter format
5. Appointment letter format
6. Salary increment letter format
7. Promotion letter format
8. Transfer letter format
9. Warning letter format
10. Showcase letter format
11. Termination letter format

Nitin Jolly
Mob: 9818342527

Please find the attachments.

Regards