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 Excel 2007 Files As Separate Windows. If you work with multiple Excel files over the course of a workday, and especially if you use a dual-monitor setup, you might wonder how you can ...

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.

CSV files are special text files that are quite common when dealing with spreadsheets. Here's how to open and make them.

What happens when you want to edit a Microsoft Excel .xlsx file on a Mac, iPhone or iPad? While it’s not quite as easy as opening .docx files in Pages for Mac, it’s not an overly complicated ...