I googled it but I haven't found a satisfactory answer. After that, I realised that you can save your template as .xltx format to the your Custom Office Template folder, C:\Users\yourUser\Documents\Custom Office Templates .
It is so simple,
- Open a new excel document
- Create your template (I changed zoom to %85)
- Then Save As your document with the name you give. (I gave it as Minus Fifteen Zoom :))
- When opening a new excel document you see yout template that you save in Personal section.
- Open it and enjoy your template.
Have a nice excels...