If you’re still committed to using Excel or a similar spreadsheet app for your invoicing, you can make thing simpler by using a template.
A good template will give you a standard look and feel while also limiting the actions you can take.y
The Really Easy Invoicing Template does exactly this.
You can download the free version from here. The free version works in exactly the same way as the paid for (PRO) version – coming soon – except it has fewer invoice pages (30) and no advanced reports.
Whichever version you’re using, this video explains how to first set it up with your company details and then to create your first invoice.