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XLSX is a file format used for Microsoft Excel spreadsheets, allowing users to organize, analyze, and visualize data in tabular form. It supports complex features like formulas, charts, and pivot tables, making it a versatile tool for both personal and professional use. Interestingly, XLSX was introduced with Excel 2007 as part of the Office Open XML standard, replacing the older XLS format for better data management and compatibility.
Technically, an XLSX file is a ZIP archive containing multiple XML files that store workbook data, styles, shared strings, and worksheet content separately. The use of Open XML allows for extensibility and better integration with other software systems. This format supports a limit of 1,048,576 rows and 16,384 columns per worksheet, catering to large datasets.
XLSX files are based on XML and ZIP technologies, which means they are essentially compressed collections of XML files. This structure improves file corruption resistance and makes it easier to extract data programmatically. Many other spreadsheet programs, such as Google Sheets and LibreOffice Calc, can open and edit XLSX files, highlighting its widespread adoption.
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