Data Required For Spreadsheet

I have an Excel spreadsheet with five columns encompassing the following data.

First Name: 311 records
Last Name: 311 records
Email Address: Zero records
Company Name: 311 records
Domain Name: Zero records

Using search tools, I require you to find and include the business email addresses and domain name data of the respective individuals into the spreadsheet.

Ensuring the accuracy of both the email addresses and domain names is essential prior to adding them to the sheet.