I have 2 questions 1. Is it true that if your employer has a file on you, that you have the right to know what's in it?/ or have the right to copies?

Unless you are an employee of a government entity, your employment file is the employer's property and it is not required to share it with you.  An employer is required to pay only those hours actually worked by a terminated employee.  It is incorrect that the employer is obligated to pay for hours that it scheduled an employee to work before that employee's termination.