An invoice is a commercial document issued by a seller to a buyer, relating to a sale transaction and indicating the products, quantities, and agreed prices for products or services the seller has provided the buyer.
This Invoice is a user friendly Microsoft Excel template.
With this, you can prepare on Excel, save as Excel or PDF.
You can email this PDF as an attachment to your buyers.
You can also Print it and mail this.
What the Seller needs to start the work
You may mention desired currency for your Invoice.