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 ...

If your Excel files are opening in Notepad on Windows PC, here's how you can reset the settings to make .xls, .xlsx, etc files open in Excel.

File-security limits can curtail your ability to open or save Microsoft Excel files.

If Task Scheduler is not opening an Excel file on your Windows PC, ensure the task is set to run only when user is logged on, or use these fixes.

Numbers has the ability to open Excel files so you can work on them. You can also export spreadsheets in Numbers so that they are compatible with Excel.

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.

Cloud Connect automatically syncs Word and Excel files with your Google Docs account, but when you open the files in their native formats on the iPad, you can view but not edit their content.

Microsoft Word can accommodate a surprising number of file formats, and even take in Excel and PowerPoint data, though it might look funny. Here's how.