What is an SPE file?
An .SPE file is primarily a data file used to store spectrum and spectroscopy measurements. Different scientific instruments and software applications use this extension to save experimental data. Because many hardware and software companies use the .SPE extension, these files can contain completely different internal structures.
For example, an .SPE file might be a gamma spectroscopy file created by ORTEC GammaVision, an XPS spectrum data file from Physical Electronics MultiPak, or a WinSpec CCD Capture File created by Roper Scientific and Princeton Instruments. In a different context, the .SPE extension is also used as an extension package for the data statistics software IBM SPSS.
How to open SPE files?
To open an .SPE file on your computer, you usually need the exact software that originally created it. Examples include Princeton Instruments LightField, Gasmet Calcmet, or Advantest analyzer software.
If you know the internal structure of the file, you can often read the raw data values using programming languages like Python or MATLAB. You can use data analysis libraries such as `numpy` or community-built tools like `spe2py` to import the numerical data and graph it yourself.
Best practices and troubleshooting
Because the .SPE extension has multiple possible meanings, you will often experience compatibility errors if you try to open an .SPE file in the wrong program. A spectrum file from one machine usually will not open in the software built for another machine. You must first identify the correct format of your file.
If you do not know the origin of your file, viewer.online/spe can analyze .SPE files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available.
Summary
viewer.online/spe is useful for identifying, inspecting, and understanding .SPE files without installing specialized scientific software or dealing with compatibility problems.