Open XLS File

Information, tips and instructions


What is XLS file?

XLS files can contain information similar to a database. It may also contain graphs, formulas, images, and charts essential for presenting reports. Data are stored in rows and columns bearing unique identification such as A1 for cell number under column 1 and row 1.

How to Open XLS File without Microsoft Office?

If you need to open XLS files on Mac or Windows operating system and you don't want to purchase Microsoft Office subscription the easiest way to do it would be by using Microsoft OneDrive spreadsheet import and editing capabilities.

You can also use free office software like LibreOffice or OpenOffice.

What is XLS internal structure?

Information in XLS files is stored in binary format. It is impossible to get any information by looking into XLS file in text editor. You either will need to have a Microsoft Excel or other application which can open XLS files installed or be able to parse binary code structures using HEX editor.

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Extension Details
  Microsoft Excel Document
Opens with
  Microsoft Excel
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