With 2018 upon us you may be looking for a calendar to use this year. Rather than creating one yourself, I suggest having a look at the free calendars available at Office Online .
They are available for a range of programs (Word, Excel, PowerPoint) and formats (one week per page, one month per page, etc.)
Most of the templates at the top of this page need an online account to access them or you can scroll down to find versions you can download. Many of the calendars let you specify the year so you can use the template into 2019 and beyond.