If your usage is not much, use LibreOffice and save on your licensing costs.
If new data are true, Microsofthas a big problem.
According to a study done by SoftWatch, seven out of 10 employees don’t use Microsoft Office to any extent.
The three-month study involved 148,500 employees at 51 global firms. SoftWatch found that  most employees were using the applications, largely for viewing documents or very light editing.