WorldWide Telescope layer data
File type: Various data file
The wwtl file extension identifies a WorldWide Telescope layer data file.
A wwtl file stores layer data used by the WorldWide Telescope astronomy application.
File type category:
Various data file
Date updated: October 6, 2026
The wwtl file extension is associated with WorldWide Telescope, an astronomy visualization application developed by Microsoft for Microsoft Windows.
A wwtl file contains layer data for use within WorldWide Telescope. It is a program-specific data file rather than a general-purpose image or document format.
The format is primarily useful within the Windows version of WorldWide Telescope.
Open a wwtl file with WorldWide Telescope on Microsoft Windows.
To reuse the information in another form, open the wwtl file in WorldWide Telescope and use any layer or data export function provided by the application.
Software applications that handle other tasks involving wwtl files:
Microsoft Windows
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