Need mobile database for telecalling

I am in need of a freelancer who can help me with creating a mobile database for my telecalling project. The ideal candidate should have experience in updating existing databases and should be proficient in Excel format.

Requirements:
- Update an existing mobile database with small size (less than 500 entries)
- Format the mobile database in Excel format

Skills and experience needed:
- Experience in working with mobile databases, particularly updating existing databases
- Proficiency in Excel format for database formatting