You can download verified country code datasets from these sources:
Maintains an Alpha-3 Country Code Excel File which includes 3-letter codes for over 230 territories. country codes excel download
Offers a convenient Country Codes Spreadsheet that includes international dialing codes alongside ISO alpha-2 codes. Understanding the Different Code Formats You can download verified country code datasets from
When downloading your file, ensure you have the correct standard for your specific Excel project: List of all countries with their 2 digit codes (ISO 3166-1) This version typically includes the standard ISO 3166-1
Offers a Public Domain Country List available for download as a CSV. This version typically includes the standard ISO 3166-1 alpha-2 (2-letter) codes and country names.
The ISO Country Codes Collection provides official lists in .xls , .csv , and .xml formats. This paid subscription ensures your database stays updated with the latest changes to ISO 3166-1 (countries), 3166-2 (subdivisions), and 3166-3 (former names).