Uniform Invoice Software Enterprise - Version 4.11 When it's time to do billing you need easy to use invoicing software, and you need an invoice format that meets your business requirements. Excel is an ideal tool for creating your very own invoice format, but when it comes to storing your data, you need a database system. Excel Invoice Manager was based on this understanding and was release in 2005. The ability of connecting an invoice template in Excel format to backend database makes the billing software not only easy to use, but also powerful enough to manager large amount of data. That's why Excel Invoice Manager is so popular around the world. With the release of Uniform Invoice Software 3.12, Excel Invoice Manager goes into a new era. Uniform Invoice Software by Uniform Software Ltd now supports the new platforms like Windows 8, Office 2013 - both 32bit and 64bit is supported. The features of custom fields support are available in all editions, and it is much easier to use than before.