Text to Columns in Excel
Select the data range (e.g., A1).
Go to “Data"tab > Data Tools Group “Text to Columns" > Choose Delimited > click Next > Check the Comma delimiter (according to your case, first check columns in Data Preview) and click Next.
Choose the appropriate formats for each new column, then click Finish.
Final Result
https://excelbasics.fun/how-to-protect-worksheet-in-excel/(opens in a new tab)
https://excelbasics.fun/how-to-remove-duplicates-in-excel/(opens in a new tab)