I'm expert doing this class of projects. Contact me for more details, I think that the time that I can use is
1. Split by comma 2H
2. GridView component 1H
3. Look in gridview or using linq 2H
4. Implementation of function 1H
5. Creatting windows for edit and save as another .txt 3H
6. Log funtions 1H
7. Documentation 2H
8. Codding (in the project)
Greetings.