How to generate an invoice on Windows?

I'm a newbie in business and need to generate invoices. Can anyone help with quick invoice generation on Windows?

 

I would like to know how to do it quick too, any advice? Soon I am getting a commercial property in Costa Blanca so it will be really useful for me

 

To generate an invoice perform the following steps:
1. Open a New Blank Document
2. Create an Invoice Header
3. Add the Invoice Date
4. Include a Unique Invoice Number
5. Include Your Client's Contact Details.
6. Create an Itemized List of Services
7. Display the Total Amount Due.
8. Add the deadline for payment
9. Include your payment terms