What Microsoft Excel file format, introduced in 2007, is the industry standard for spreadsheets?
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XLSX
The 'X' at the end of the XLSX extension stands for XML, a format that makes the files much smaller and less likely to be corrupted than the older XLS format. Because it is an open standard, these files can be read by many different spreadsheet programs, not just Microsoft Excel.
Also asked as:
- What is the standard file extension for Microsoft Excel spreadsheets introduced with the 2007 version?