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O&K Printer Viewer

Printer spool file viewer for Windows

Open and view printer spool files

O&K Printer Viewer helps you open, inspect and convert printer spool files and printer data files, including SPL, PRN, PCL, PostScript, EMF and other printer formats.

  • View what was actually sent to the printer
  • Analyze print jobs for troubleshooting and print debugging
  • Reprint files or save them as PDF and image files
Download O&K Printer Viewer
Installer size: 5.2 MB

Open supported printer spool files, inspect printed documents and export them to PDF, BMP, GIF, JPEG or TIFF.

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Ideal for print debugging, print job analysis and recovering data from print queues.

What is O&K Printer Viewer?

O&K Printer Viewer is a utility for opening and viewing printer data files. The program supports loading spool files, PCL, PostScript and other printer formats, displaying their content as graphical pages.

You can view each document printed on your printer, print it again or save it as a PDF document or graphic file.

Open printer spool files Inspect SPL, PRN and other printer-generated files that normal document viewers cannot display correctly.
View printed documents See what was actually printed, not just the original source document.
Analyze print jobs Useful for troubleshooting output problems, driver testing and print debugging.
Export and reprint Save output as PDF or images, or print supported files again when needed.

What is a printer spool file?

A printer spool file is a file created by Windows or a printer driver before a document is physically printed. Instead of storing editable text like an office document, it usually contains printer commands, page descriptions or device-specific print data.

That is why files such as SPL, PRN, PCL and PostScript are often difficult to open with standard applications. A dedicated printer spool file viewer is needed to display them correctly.

How to open SPL, PRN, PCL and PostScript files

How to open SPL files SPL files are Windows spool files generated by the print spooler. Open them in O&K Printer Viewer to inspect the rendered pages and analyze the print job.
How to open PRN files PRN files often contain raw printer output. Their exact content depends on the driver and printer language, so a specialized viewer is the safest way to inspect them.
How to open PCL files PCL files contain printer commands rather than regular document structure. O&K Printer Viewer helps display supported PCL data visually.
How to open PostScript files PostScript is a page description language used by many office printers. Use O&K Printer Viewer to inspect supported PostScript print data for troubleshooting and review.

Supported printer file formats

O&K Printer Viewer supports many printer-related formats used in office, technical and label printing workflows.

Format Typical use
SPL / EMF spool files Windows print spooler output and printed document preview
PCL5 / PCL6 Office printer output, print analysis and debugging
PostScript Page description files used by many business printers
HP-GL/2 Graphics, technical drawings and plotter-style output
XQX / HBPL / Xerox GDI / CPCA Vendor-specific printer data formats
TSC Printer Language Thermal barcode and label printing

Other supported formats include GDI printing (ZjStream), Samsung Printer Language Color and printer-specific data used by selected HP, Dell, Epson, Fuji-Xerox, Xerox, Canon and TSC devices.

What can you do with a spool file?

Preview printed documents Check the actual output that was sent to the printer.
Investigate print problems Diagnose output issues, driver behavior and printer-language problems.
Recover print jobs Open saved printer files from spool folders or archived print samples.
Convert to PDF or images Save supported print files as PDF, BMP, GIF, JPEG or TIFF.

Who is O&K Printer Viewer for?

IT administrators Inspect print queues and understand what users actually printed.
Support engineers Analyze problematic print jobs and customer-provided printer files.
Software developers Review printer output during driver testing and print subsystem debugging.
Label printing teams Open TSC label printer files and inspect barcode label output.

Product screenshots

O&K Printer Viewer can display different kinds of printer output, from Windows spool files to office printer formats and label printer data.

Windows spool preview
O&K Printer Viewer opening an EMF spooled file
HP-GL/2 preview
Preview of HP-GL/2 printer output in O&K Printer Viewer
RAW printer output preview
Viewing printer output in O&K Printer Viewer
TPSL barcode preview
Viewing TSPL barcode in O&K Printer Viewer

Frequently asked questions

How do I open an SPL file?

Open the file in O&K Printer Viewer. The program is designed to display supported spool data as readable page images.

Can I view what was printed on a printer?

Yes. O&K Printer Viewer helps inspect supported spool and printer data files so you can see what was actually sent to the printer.

Can I save printer spool files as PDF?

Yes. The program can save supported printer files as PDF documents or graphic files such as BMP, GIF, JPEG and TIFF.

What formats does O&K Printer Viewer support?

Supported formats include PCL5, HP-GL/2, PCL6, PostScript, GDI printing, EMF spooled files, Samsung Printer Language Color, XQX, Xerox GDI printing, CPCA, HBPL and TSC Printer Language.

Related articles

How to Open SPL Files

Printer Spool File Viewer

How to Open TSPL File

View the Contents of Printed Documents

Download O&K Printer Viewer

Need to open SPL, PRN, PCL, PostScript or other printer spool files? Download O&K Printer Viewer and inspect your print data in a readable visual format.

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