Navigate to the "Number" group within the "Home" tab in Excel. Click the small arrow beside the "Number Format" box. Click "Text" to convert your cells to text formatting.

Why is my number stored as text in Excel? Excel doesn’t convert numbers written in text into digits if you import data from another source because of the default setting.

Excel filters help you find exactly what you want, no matter how big your spreadsheet database is. Here's how to set number, text and data filters.

You can take the information in a mailing label document and convert it to a column-based spreadsheet in Excel provided you you know how to prepare the document.