They are mainly used for recoding different data, and they can be downloaded for free from the internet. Data analysts fancy these templates, usually because they are free to use and they make work easier. You should start using spreadsheet templates for planning if you haven’t done it before.
A blank spreadsheet template was designed for everyone. So, as long as you want to do budgeting of some sort, you will definitely find this template useful. The template isn’t different from the Excel format you are used to, but the best thing about the template you are going to download is that it features unique customization.