R Data Cleaning and Visualization

I'm seeking assistance with R coding, specifically for data cleaning and making graphs.

Key tasks include:
- Data cleaning:
- Removing duplicates
- Handling missing values
- Data transformation
- Making the file usable in R

- Data visualization:
- Creating graphs

The data is currently in CSV format.

Ideal skills and experience:
- Proficiency in R
- Experience with data cleaning and manipulation
- Strong data visualization skills