Can we load the Merit/Promotion Minimum/Maximum ranges in Workforce Compensation using a HDL or Exce

Content

The clients are looking for a solution where they can provide an excel file with the Merit/promotion minimum/maximum ranges for each year for the conditions like Grade/location etc. 

They wish to reduce the involvement of the Development team and want to know if they can prepare in an excel file and upload the contents instead of approaching the development team all the time.

Have anyone of you encountered such a situation or should we need a development for each year?