How to Create Pipe Delimited Files in Excel 2010. Microsoft Excel allows you to export spreadsheet data to a number of common formats for use with other applications. If you need to export data to ...

If the DAT file you're trying to open is text, you can convert the file into text in the Microsoft Excel program by first saving it as a CSV file.

To import data from a text file into Microsoft Excel, follow this step-by-step guide: First, create a blank spreadsheet in Microsoft Excel and ensure you have the .txt file on your PC.