Comprehensive Excel Data Cleansing

I'm seeking an experienced freelancer with a strong Excel skill set. The project involves a thorough clean-up of my dataset including text, numeric, and date data.

The tasks I require include:

1. Text Data Tasks:
- Removing leading and trailing spaces
- Duplicate elimination
- Converting all text to lowercase

2. Numeric Data Tasks:
- Identifying and removing any outliers
- Addressing any formatting issues
- Data conversion to percentage format

Experience with similar data cleaning tasks is a significant advantage.