This article explains what an XLX file is and how to open it on your computer.
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A file with the XLX file extension is most likely associated with the Crystal Reports software.
Incomplete download files saved via the XoloX download manager also use this extension.
There is some confusion about XLX. While it may sound like a Microsoft Excel-based format, it is not. Excel does not support XLX files, and XLX files are not typical spreadsheet files.