Copyright: Reprinted please note the name of the source https://blog.csdn.net/meism5/article/details/90645571
The difference between the extension .xls Excel file with the .xlsx
- .xls format is a version of Excel 1997-2003; .xlsx format is a version of Excel 2007
- .xls binary compound document type structure; .xlsx with new compressed XML-based file format, making it a smaller footprint, computing speed will be a little faster, meaning xlsx last x lies in this.
- .Xls file format of all Office programs can open, but only .xlsx Office 2007 or later to open.