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.XLSX - Microsoft Excel Spreadsheet

APPLICATION

XLSX is the modern spreadsheet format of Microsoft Excel, based on the Office Open XML standard. Use OpenFiles to open and view XLSX files for free on macOS, Windows, and Linux.

File Details

Extensions
.xlsx
MIME Types
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

How to Open .xlsx Files

  1. Download and install OpenFiles from the official website.
  2. Launch OpenFiles and open your .xlsx file via File > Open or drag and drop.
  3. Your file will open in the appropriate viewer for viewing and editing.
Supported by
Sheet Viewer
viewer

FAQ

How to open .xlsx files?

Use OpenFiles to open and view .xlsx files for free, without installing Microsoft Excel.

What is an .xlsx file?

.xlsx is the standard Excel spreadsheet format based on XML compressed storage, supporting formulas, charts, and data analysis features.

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