Clean & Format Contact Spreadsheet

I have a compact contact list that I need turned into a polished Excel file. The raw sheet already holds names, emails, and phone numbers, but right now the columns are uneven, some cells are merged, and a few records are duplicated.

Here is what I need you to do:
• Keep the work in Excel (my preferred platform).
• Re-align every piece of data into clear, consistent columns.
• Remove duplicate rows so each contact appears only once.
• Re-format phone numbers into an international format.
• Apply visual touches—bold headers, alternating row colors, and a neat border around every data block—so the sheet is instantly readable.

Deliverable:
• A single, tidy Excel spreadsheet ready for immediate use.