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View a SPO file online, free

Open and read .SPO files online. View source, logs and text with syntax highlighting, search and line numbers, free.

Drop your .SPO file here

Opens your .SPO file right here.

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Up to 50 MB · 160+ text and code extensions
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100% free. No limits on use

What you get for a .SPO file

We don't have a dedicated viewer for this format, so we identify and inspect it instead — honestly, only what can be read from the file.

01

Drop your .SPO file

Choose it or drag it in. It's read right here in your browser.

02

We identify it

We read the magic bytes to tell what the file really is, its MIME type, and whether the name matches the contents.

03

See the details

Any metadata we can extract (dimensions, EXIF/GPS, document author and dates), a hex view, plus readable text and strings found inside.

What is a .SPO file?

Plain text that programs, servers and people write every day.

An .SPO file is an SPSS Statistical Data Output File used for storing results generated by statistical analysis. These data files contain the output from procedures performed within SPSS software, such as charts and tables. Users can open and view these files using the SPSS application or the SmartViewer utility.

Programs that open .SPO files

Windows
IBM SPSS Statistics 15 or earlier, SPSS Legacy Viewer (SmartViewer)
macOS
SPSS Legacy Viewer (SmartViewer)
.SPO format details
Full nameSPSS Output Document (Legacy)
DeveloperSPSS Inc. (IBM acquired SPSS in 2009)
First releasedcirca 1993-1994 (SPSS for Windows 6.x Output Navigator)
CategoryText & Code
MIME typeapplication/octet-stream
SignatureD0 CF 11 E0 A1 B1 1A E1 OLE2 Compound Document magic

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Frequently asked questions

Is my .SPO file uploaded anywhere?

No. The file is read and highlighted for you.

Why do some characters look wrong (é, ł)?

That usually means the file was saved in one encoding and opened in another. We detect UTF-8, UTF-16 and the Windows-1250/1252 code pages automatically and show which one was used.

Can it handle huge log files?

Yes, up to 50 MB. Only the lines on screen are drawn, so scrolling stays smooth. Syntax colours are switched off for files over 1.5 MB to keep things fast.

How do the log level filters work?

We find levels like ERROR, WARN, INFO and DEBUG on each line. Lines without a level, such as stack traces, stay with the entry above them, so filtering to errors keeps the full trace.

Can I edit the file?

This is a viewer. To change code, download it or copy it into your editor. Converting encodings and line endings is planned.

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