Power Query or Get & Transform (In Excel 2016) lets you perform a series of steps to transform your Excel data.  One of the steps it allows you to take is to extract the length of text.
For our example, let us get the names that have at least 12 characters!
STEP 1: Select your data and turn it into an Excel Table by pressing the shortcut Ctrl + T or by going to Insert > Table
STEP 2: Go to Data > Get & Transform > From Table (Excel 2016) or Power Query > Excel Data > From Table (Excel 2013 & 2010)
Excel 2016:
 
Excel 2013 & 2010:
STEP 3: This will open up the Power Query Editor.
Make sure the Name column is selected. Go to Add Column > From Text> Extract > Length
Now we can get the names that are at least 12 characters long! Click on the Arrow beside the Length Column.
Go to Number Filters > Greater Than Or Equal To
Type in 12. Click OK.
STEP 4: Click Close & Load from the Home tab and this will open up a brand new worksheet in your Excel workbook with the filtered records!
You now have your new table with names at least 12 characters long!
How to Extract Length in Excel Using Power Query
