In my daily work, I often have to work on excel to process important amount of data.
When many strings are stored in one column, I have the need to extract the unique value for one column as if I was doing a SELECT DISTINCT in one database in SQL.
Here is how to extract the unique list of strings in one Excel column:
You need to go in the main menu Data / Filter / Advanced Filter

The Advanced Filter dialog box will appear and you need to check the Unique Records only option

Then you will able to copy the list in a particular location.
This way you won’t miss any records when doing this filtering.