Here's an article that should help you make those floors shiny again. Wishing you the best.
You probably have a waxy dirt build up. I removed mine with scrubbing Bubbles spray. Work a section at a time and use a product made for your type of floor.
Thank you for your advice I will definitely try it
1 cup baking soda
1 cup white cleaning vinegar
1 Tbsp blue Dawn
2 gallons hot water
This should remove any build up, mop liberally with solution.
Sounds good thank you I will definitely try it