如果你使用的是旧版本的Excel（如 Excel 2003），你可能需要安装Microsoft提供的兼容性包，以便能够打开.xlsx文件。 三、使用其他电子表格软件打开.xlsx ...

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 ...

You don't necessarily need Microsoft Excel to work with an .xlsx file Reviewed by Ryan Perian This article explains what XLSX files are, how to open them, and which programs are able to convert ...

Simply put, .xlsx is a file extension for the open XML spreadsheet used by Microsoft Excel from 2007 onwards. Why the change in format from earlier versions of Excel?

Open the spreadsheet in Excel, click "File" and select "Save As." Choose the first "Excel Workbook" option to save the spreadsheet with an .xlsx extension.

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.