Speex encoded audio
File type: Audio and sound file
Files with spx file extension may be found as audio files in the special Speex free open source audio codec used mainly to encode speech.
Found 4 different file type records with the same spx filename suffix.
File type category:
Audio and sound file
Date updated: July 13, 2025
The spx files extension is mainly used for Speex encoded audio format, based on open source/free software patent-free project, developed by Xiph.Org Foundation.
Speex is based on CELP and is designed to compress voice at bitrates ranging from 2 to 44 kbps. Some of Speex's features include:
Use VLC media player or any other media player with support of SPX format.
Possibly may be converted to other audio formats.
Englishaudio/speexaudio/oggaudio/x-speexaudio/x-speex+ogg4F 67 67 53 00 02 00 00 00 00 00 00 00 00
OggS..........
4F 67 67 53
OggS
4F 67 67 53 00 02
OggS..
Software applications that can open spx files:
Microsoft Windows
Apps designed for playing spx files:
Microsoft Windows
Apple macOS / Mac OS X
Linux/Unix
Apple iOS
Google Android
Software apps that record to spx files:
Microsoft Windows
Software apps that export spx files:
Microsoft Windows
File type category:
Text file
Date updated: November 29, 2024
The spx file extension is related to Apple System Profiler.
Apple System Profiler is a part of the Mac OS X (macOS) operating system.
To enter into Apple System Profiler you can:
The Apple System Profiler generates the SPX Apple System Profiler computer information file that contains full System Profiler report. File is in XML text format.
Creating and printing or saving a report:
Use Apple System Profiler to view content of *.spx files.
The *.spx file is stored in simple text file format and it is also viewable in text editor.
Use any text editor to export content of *.spx files to other text formats.
application/x-apple-systemprofiler+xmlFile type category:
GIS, GPS navigation and map file
Date updated: October 16, 2026
The spx file extension is used by ArcGIS, Esri's geographic information system for creating, managing, and analyzing maps and geographic information. ArcGIS is available for Microsoft Windows.
An spx file stores spatial index information for feature data in an ArcGIS file geodatabase. The index helps ArcGIS locate geographic features efficiently during map display and spatial searches.
The file belongs to the file geodatabase's collection of supporting files and works together with the geodatabase's feature and attribute data. It should be kept in its original geodatabase folder and should not be renamed, moved, or edited separately.
Open the containing file geodatabase in ArcGIS on Microsoft Windows. ArcGIS manages the spx file automatically when the geodatabase is used.
The spx file is an internal index rather than a standalone map or data document, so it cannot normally be opened directly in a text editor or other general-purpose application.
An spx file is not normally converted by itself. To convert or share the geographic data, open the containing file geodatabase in ArcGIS and export the relevant feature class or geodatabase to a supported GIS format.
ArcGIS creates and maintains the necessary index files in the destination geodatabase. Do not delete or convert the spx file separately.
File type category:
Source code and script file
Date updated: August 30, 2018
Record marked as obsolete and not updated for a long time.
The spx file extension is associated with the FoxPro programming language and relational database management system developed by Microsoft.
An spx file contains compiled generated source code from the form created from spr file.
FoxPro was replaced by Visual FoxPro that is also able to run generated screen programs.
Use FoxPro to open *.spx files.
Probably can be exported to other formats.
Software applications that can open spx files:
Microsoft Windows
Software apps that create spx files:
Microsoft Windows
