The answer to 'why is my floor greasy' is that there are a few common causes for a greasy floor. Excess cooking oil, spilled liquids, or improper cleaning can all lead to a greasy film on your floors. This can make the floor feel slippery and attract more dirt and dust.
The first step is to thoroughly clean the floor using a degreasing cleaner designed for floors. This will help cut through the grease and restore the clean, dry surface. If the grease persists, it may be due to an underlying issue like a leak or spill that wasn't properly cleaned up. In that case, you may need to do a more thorough deep clean or call in a professional cleaning service.