XWE file
File type: Various data file
The npsf file extension identifies a data file used by XWE (eXtendable Wad Editor).
File type category:
Various data file
Date updated: October 3, 2026
XWE is a Microsoft Windows tool for editing lumps in Doom WAD files. An npsf file stores data used by the XWE editor.
The npsf format is specific to XWE's supporting data and is not a general-purpose document format.
Open the npsf file with XWE on Microsoft Windows.
The npsf file is supporting data for XWE rather than a document format intended for conversion. Use XWE to work with the associated Doom WAD content and export that content in a format supported by the editor.
Software applications that handle other tasks involving npsf files:
Microsoft Windows