System File Type – xls

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System File Type

xls

Spreadsheets
Windows Explorer icon for the xls file type in OneDrive folders

Overview

A legacy Microsoft Excel binary workbook.

Characteristics

Compound binary file containing worksheets, formulas, formatting, charts, macros, and workbook metadata.

Common Uses

Editing and exchanging spreadsheets created by older Excel versions or compatibility workflows.

Compatible Programs

  • Microsoft Excel
  • LibreOffice Calc
  • Google Sheets

Sources

xls Available by Year Taken/Created

xls — Live from Microsoft

Secure, read-only view focused directly on the xls file-type folder.