Opening XLX Files

The XLX file type is primarily associated with Microsoft Excel.

XLX	File extension: XLX
	File type:	spreadsheet file

What is an XLX file?

XLX files mostly belong to Microsoft Excel. XLX files are spreadsheet files used primarily for storing data in tables.
They come in two main internal formats: one using a ZIP container as found in OpenDocument spreadsheets (commonly opened with OpenOffice Calc or LibreOffice Calc), and the other using the Microsoft Compound File Binary Format typical of older Microsoft Excel spreadsheets (Microsoft Excel).
Key details sourced by FilExt.com include:

• Data storage: They hold rows, columns, formulas, and charts.
• Interoperability: They work with multiple spreadsheet programs.
• Format variations: Some XLX files are based on the OpenDocument standard while others follow Microsoft Excel's legacy format.
• Functionality: They support calculations, data manipulation, and analysis.

FilExt.com tip: These files are essential for office productivity and data analysis tasks.

How to open XLX files

You need a suitable software like Microsoft Excel to open an XLX file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your XLX file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a XLX file directly in the browser:. Just drag the file onto this browser window and drop it.

Online XLX Text Viewer

Choose your .xlx file to analyze

or drag and drop it here

Online File Viewer

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XLX format details:

The file format, which is the arrangement and type of data in a file, determines which program can open the file. The file format can be deduced from the file extension and the signature. However, different programs can use the same file extension, and file extensions can be assigned incorrectly. Exact knowledge of the format is therefore important in order to solve problems occurring in files. Our analysis of the XLX files produces the following result:

The XLX file extension is not common and includes different formats for the applicable programs. The two most popular formats are as follows:

• 30% of all XLX files use ZIP compression, that is, an XLX file includes multiple compressed files. The 10 to 21 compressed files are called [Content_Types].xml, \_rels\.rels, \docProps\app.xml, \docProps\core.xml, \xl\_rels\workbook.xml.rels, \xl\printerSettings\printerSettings1.bin, \xl\sharedStrings.xml, \xl\styles.xml, \xl\theme\theme1.xml, \xl\workbook.xml and \xl\worksheets\sheet1.xml. You can see the included files and images by renaming the file extension to .zip and then double-clicking it. The average file size is 25 KB with most files being between 10 KB and 100 KB in size. Certain words are almost always found in the files, such as [Content_Types].xml.
• 25% of all XLX files use the same file format, which have the signature 83 00 00 00 00 00 00 00. If you open these files in a text editor, you will see only illegible characters. The files are 130 KB to 29 MB in size, with a median of 1 MB.

All the rest of the XLX files (45%) have different formats, often, for example, DOC. If you want to find out which format your XLX file belongs to, just click on the button "Choose your .xlx file to analyze".