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 ...

Click "File," "Open" and browse to your second Excel file. Double-click the file to open it. Repeat the steps for each new file you'd like to open in its own window.

Open Excel files in separate windows using the Shift key and the Taskbar; ... Every time you click on it, a new Excel window opens; 4] Open Excel files in separate windows with the Office Tab.

If your XLSX file isn’t opening in Excel, you might not have Excel 2007 or a later version, which is needed for XLSX compatibility. Ensure your Microsoft Excel is updated.

In Excel, with the file open that you want to make backups of, click File and then click Save As or Save a Copy. 2. Click Browse to open the Save As dialog box.

Excel displays a warning message that the file format and extension don’t match (HTML table and XLS), but allows the user to open the file anyway. Today, users reported that these reports no ...

If you’re using Excel 2007, do the following: Select the tab of the sheet you want to copy (or move). Click the Home tab and then click Format in the Cells group.

If you use Microsoft Excel on your Mac, you can save the spreadsheets you create and open them in Numbers, Apple’s spreadsheet app. It’s a handy feature to use in case you can’t access ...