An XLSX file is a spreadsheet document created by Microsoft Excel or other spreadsheet programs like Google Sheets and LibreOffice Calc. Unlike its predecessor, the binary format, XLSX is based on the Office Open XML (OOXML) standard.
: A performance-optimizing file that stores every unique text string used in the workbook once, referencing them by ID in the sheet files to save space. An XLSX file is a spreadsheet document created
Microsoft transitioned to XLSX with the release of Office 2007 to address several limitations of the older XLS format: the binary format
: Contains formatting data such as fonts, colors, and borders. 3. XLSX vs. XLS: Why the Change? An XLSX file is a spreadsheet document created