How to Open a PRN File in Windows 10

Updated 6 November 2026 · Standard formula, shown below

PRN files are output files created when you “print to file” from a Windows program. They contain the data that would have been sent to a printer, often in a printer-specific format. This guide shows you several ways to open or view a PRN file on Windows 10, depending on what you want to do with it.

What You’ll Need

A Windows 10 computer with the PRN file saved on it.
A text editor like Notepad (built-in) or a word processor like Microsoft Word (optional).
A PDF reader (like Microsoft Edge or Adobe Reader) if you want to convert the PRN to PDF.
Knowledge of what printer the PRN file was created for (optional but helpful).

Step-by-Step

Locate the PRN file. Use File Explorer to find the file. It may have a .prn extension, but sometimes Windows hides the extension. If you don’t see it, go to the View tab and check “File name extensions”.
Try to open it with Notepad. Right-click the file, choose “Open with”, then select “Notepad”. If the file is a plain text print job (like from a text editor or a basic printer driver), you’ll see readable text. If it’s binary or printer-specific, you’ll see garbled characters.
If Notepad shows gibberish, try a different viewer. Some PRN files are actually PostScript or PCL (Printer Command Language). You can try opening them with a universal viewer like SumatraPDF or Ghostscript (free tools) that can interpret these formats.
Convert the PRN to PDF. If you have a printer driver that supports “Microsoft Print to PDF”, you can “print” the PRN file to a PDF. Open the PRN in a program that can read it (like Notepad or a viewer), then go to File > Print, choose “Microsoft Print to PDF” as the printer, and save the output.
Use a dedicated conversion tool. If the PRN is from a specific printer, you might need a converter. For example, if it’s a PostScript file, you can use Ghostscript to convert it to PDF. If it’s PCL, you can use a PCL viewer or converter.
If all else fails, try renaming the file. Sometimes PRN files are just renamed text or image files. Try changing the extension to .txt or .ps (PostScript) and opening it again.

Common Mistakes

Assuming all PRN files are the same. PRN files can be plain text, PostScript, PCL, or even proprietary formats. There’s no universal viewer.
Using the wrong printer driver. If you try to send the PRN to a printer that doesn’t understand the format, you’ll get garbage output.
Changing the file extension without knowing the format. Renaming a .prn to .txt won’t magically make it readable if it’s binary.

Tips

If you know the printer model that created the PRN, search for that model’s “PRN viewer” or “converter” – some manufacturers provide free tools.
For PostScript PRN files, Ghostscript is the gold standard. It’s free and can convert to PDF, PNG, and more.
If you just need to view the content, try opening it in a browser like Chrome or Edge – they can sometimes render basic text or PostScript.
To avoid PRN files in the future, uncheck “Print to file” in the print dialog unless you really need it.

Troubleshooting

If you can’t open the PRN file, try these steps:

Check if the file is corrupted. Try opening a known-good PRN file to see if the issue is with the file itself.
Install a universal viewer. Download and install Ghostscript and Ghostview (or SumatraPDF) to handle PostScript and PCL files.
Use a hex editor. Open the file in a hex editor (like HxD) to see the first few bytes. If you see “%!PS” it’s PostScript; if you see “PCL” or escape characters, it’s PCL. This tells you what tool to use.
Try a different text editor. Notepad might not handle large files well. Use Notepad++ or VS Code to open it – they can handle binary and large files better.
If you need to print the PRN file, you might need to install the original printer driver on your system, then use the command line: copy /b file.prn \\localhost\printername (replace with your printer’s name). This sends the raw data directly to the printer.

Frequently Asked Questions

What is a PRN file?

A PRN file is a print-ready file created when you choose “Print to file” in a Windows print dialog. It contains the exact data that would be sent to a printer, including formatting and printer commands.

Can I open a PRN file in Excel?

Usually no. PRN files are not spreadsheet data. If the original content was a table, you might be able to open it in Notepad and then copy-paste into Excel, but the formatting will be lost.

How do I convert a PRN file to PDF?

Use a converter like Ghostscript (for PostScript) or a tool like “PRN to PDF” (search online). Alternatively, open the PRN in a viewer and “print” it to the “Microsoft Print to PDF” driver.

Why does my PRN file show weird characters?

That means the file is not plain text – it contains binary printer commands (like PCL or PostScript). You need a viewer that understands those formats, not a text editor.

Can I delete PRN files?

Yes, PRN files are usually temporary and safe to delete if you don’t need them. They don’t affect your system.

How do I create a PRN file?

In any program, go to File > Print, check the “Print to file” option, and click Print. You’ll be prompted to save the file with a .prn extension.

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.