Excel Data Set Range Expansion

I have an Excel data set that I need to manipulate. I want to increase the range of the dataset, making the top number and the bottom number further apart. The numbers in-between should be linearly distributed.

Ideal skills for the job include:
- Proficiency in Excel
- Experience with data manipulation
- Understanding of linear distribution

Freelancer should be able to:
- Specify a target interval for the new range.

Just require the formula for how to do.