LyX document
File type: Document file
A .lyx file is a structured document created by LyX, an open-source document processor.
It stores the document's text, structure and formatting instructions in LyX's native document format.
Found 2 different file type records with the same lyx filename suffix.
File type category:
Document file
Date updated: October 23, 2026
The LyX document format belongs to the LyX project, an open-source document processor for creating structured documents such as articles, books and reports. LyX uses a WYSIWYM editing approach, while document output is typically produced through LaTeX.
A .lyx file contains the document source, including its text, structural elements, formatting settings, and references to features such as equations and bibliographies. It is the native working format used by LyX rather than a final page-layout format.
LyX is available for Microsoft Windows, Apple macOS and other supported platforms. The format remains in use as the native document format of current LyX software.
Open the file in LyX. On Windows, use the Windows version of LyX; on Apple macOS, use LyX for Mac. LyX is also available for other supported platforms.
If the document uses external images, bibliographies or other referenced resources, keep those files in their expected locations so that LyX can display the document correctly.
Open the .lyx file in LyX and use its export functions to create another format. LyX can produce formats such as PDF, LaTeX and HTML.
Documents can also be exported to formats such as DOC or ODT. Exporting is preferable to changing the file extension, because the .lyx format is LyX's editable source format.
Englishapplication/x-lyxtext/x-lyxSoftware applications that can open lyx files:
Apple macOS / Mac OS X
Multiplatform
Software applications that can edit lyx files:
Apple macOS / Mac OS X
Multiplatform
Software capable of saving lyx files:
Apple macOS / Mac OS X
Multiplatform
Software apps that create lyx files:
Apple macOS / Mac OS X
Multiplatform
Software apps that print lyx files:
Multiplatform
File type category:
Various data file
Date updated: April 25, 2019
The lyx file extension is related to the XWE (eXtendable Wad Editor), an application for Microsoft Windows, which allows users to edit Doom *.wad game files.
The lyx file stores some kind of data used by XWE editor.
Probably not meant to be accessed by the user.
Probably cannot be converted to anything else.
Software applications that handle other tasks involving lyx files:
Microsoft Windows
Online conversions and file conversion information are provided by 101convert.com.
