Dec 10, 2024 · What Is an XLSX File? A file with the XLSX file extension is a Microsoft Excel Open XML Format Spreadsheet file. It's a ZIP-compressed, XML-based spreadsheet file created by Microsoft …

Oct 26, 2018 · What Is an XLSX File? XLSX files are files used in Microsoft Excel, a spreadsheet application that uses tables to organize, analyze, and store data. Each cell can contain text or …

XLS is an older, proprietary format compatible with all Microsoft Excel versions, while XLSX is a newer, XML-based open file format readable by Excel 2007 and later versions.

XLSX files are the standard spreadsheet file format used in Microsoft Excel. Learn what they are, how to open and edit them, and how to convert them to other formats.

Dec 22, 2025 · In summary, an XLSX file is a versatile, modern spreadsheet format used widely in business, education, and personal data management. Understanding its structure and how to open it …

What is an .XLSX file? An .XLSX file is a Microsoft Excel Open XML Format Spreadsheet file. It uses the file name extension .XLSX. Unlike other spreadsheets, you need Microsoft Excel to create .XLSX …

Since its introduction in 2007, XLSX has been the default format for spreadsheets created in Microsoft Excel. Unlike its predecessor XLS – a binary container format – XLSX format is based on the same …

the .xlsx file format, a cornerstone of modern data management, can be confusing, especially if you’re used to older versions of excel or entirely different spreadsheet programs.

May 19, 2025 · Microsoft Excel is a powerful tool that has revolutionized the way businesses handle data. In today’s digital age, spreadsheets have become an integral part of managing and analyzing …

Mar 25, 2024 · In a nutshell, an XLSX file is a zipped archive which contains a set of XML files. Each XML file represents one of the components of a spreadsheet. For example, the workbook, sheets …