What is the difference between xls and xlsx in excel

The difference between xls and xlsx in excel is: 1. xls is a compound document type structure, while the core structure of xlsx is an XML type structure; 2. xls is a file format generated by excel2003 and previous versions, and xlsx is the file format generated by excel2007 and later versions.

The operating environment of this article: windows7 system, Dell G3 computer, Microsoft Office Excel2010.

The difference between xls and xlsx in excel is:

1. The file formats are different. xls is a unique binary format. Its core structure is a compound document type structure, while the core structure of xlsx is an XML type structure. It uses XML-based compression to make it take up less space. That's what the last x in xlsx means.

2. Different versions. xls is the file format generated by excel2003 and previous versions, and xlsx is the file format generated by excel2007 and later versions.

3. Different compatibility. The xlsx format is backward compatible and compatible with the xls format.

Extended information:

XLS is a Microsoft Excel worksheet and is a very commonly used spreadsheet format. xls files can be opened using Microsoft Excel. In addition, Microsoft has developed a special viewer, Excel Viewer, for users who do not have Excel installed.

Use Microsoft Excel to convert tables in XLS format into a variety of formats: XML tables, XML data, web pages, tab-delimited text files (*.txt), comma-delimited text files ( *.csv) etc.

xlsx is the extension of Microsoft Office EXCEL 2007/2010/2013/2016/2019 documents. xlsx has been used since Office 2007. It replaces its current proprietary default file format with a new XML-based compressed file format, adding the letter x after the traditional file name extension (ie: docx replaces doc, .xlsx replaces xls, etc.) to make it take up less space.

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