There is probably a huge number of software and applications that can help you to deal with day-to-day invoicing tasks in your business, yet most of that software is either too expensive for small businesses to afford or simply not flexible enough, when it comes to customizing it to your specific business requirements. With that in mind, I have started to experiment in Microsoft® Excel® and created several sales invoice templates all of which you can download on this very page. The sales invoice templates are by far the best and indeed the most simple invoicing solution for any size business and in most cases can provide more comfort than any invoicing software.
The sales invoice spreadsheets, which you can download below on this page, include all information that you would expect from the regular software, such as shipping information, alternate shipping address, fields for entering the product code, fields for special notes and instructions and much more. I have also created many other corresponding spreadsheet templates, such as purchase order, price quote, packing slip and delivery note template, that continue to have the same look and feel as this sales invoice to make it easier for users to preserve that same brand look across all of their documents.