Home : File Types : _XLSX File

._XLSX File Extension

File TypeRenamed Microsoft Excel Open XML Spreadsheet

DeveloperN/A
Popularity
3.0 (4 Votes)
CategorySpreadsheet Files
FormatZip

What is a _XLSX file?

An _XLSX file is a Microsoft Excel spreadsheet file renamed from ".xlsx" to "._xlsx". It may have been renamed purposely or accidentally by a user or by a program. _XLSX files contain the same contents of an .XLSX file, which may include one or more worksheets that consist of cells arranged in a grid of rows and columns.

More Information

You can rename an _XLSX file by changing the "._xlsx" extension to ".xlsx". After renaming the file, you can open the XLSX file with a variety of programs, such as Microsoft Excel, LibreOffice Calc, and Apple Numbers.

_XLSX files may be created by email programs, specifically Windows Live Mail, when sending XLSX files via email. Windows Live Mail may rename the files if the filename ends with a "." before the "." in the extension. For example, sample..xlsx is changed to sample._xlsx by the email program. This also commonly occurs with .DOC, .DOCX, and .XLS files.

NOTE: XLSX files are typically created by Microsoft Excel. However, they may also be created using another spreadsheet program, such as LibreOffice Calc or Apple Numbers.

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Programs that open _XLSX files
Windows
Must be renamed to ".xlsx" then opened as an XLSX file
Mac
Must be renamed to ".xlsx" then opened as an XLSX file
Linux
Must be renamed to ".xlsx" then opened as an XLSX file
Web
Must be renamed to ".xlsx" then opened as an XLSX file
iOS
Must be renamed to ".xlsx" then opened as an XLSX file
Android
Must be renamed to ".xlsx" then opened as an XLSX file
Updated 5/30/2018

About _XLSX Files

Our goal is to help you understand what a file with a *._xlsx suffix is and how to open it.

The Renamed Microsoft Excel Open XML Spreadsheet file type, file format description, and Mac, Windows, Linux, Android, and iOS programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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