Select the .dat file you want to open in Excel. Finally, in the Text Import Wizard that opens up, select Fixed width, and then set the Field width and Data format when asked.

While it is technically possible to open an Excel file in Notepad, this is not a good idea. Excel files are binary files that contain complex formatting and data structures. When you open an Excel ...

Though DAT files, which house data as the shortened name implies, are usually best left alone, here's how you can open them.

How to Open an XLS File in Excel. XLS files are Excel workbook files created in Excel 97 or Excel 2003. The 2007, 2010 and 2013 versions of the program use the XLSX format by default to save ...

How to open a .csv file in Excel Opening a .csv file is as easy as opening a .txt file, and usually, you won’t have to clean up the data before doing so because the save task inserts the delimiter.