Opening a PQO File

The PQO file type is primarily associated with PhreeqcI.

PQO	File extension: PQO
	File type:	PhreeqcI files

What is a PQO file?

PQO files mostly belong to PhreeqcI. PhreeqcI Version 2 is a computer program for simulating chemical reactions and transport processes in natural or contaminated water.

How to open PQO files

You need a suitable software like PhreeqcI to open a PQO file. You need a suitable software like PhreeqcI to open a PQO file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your PQO file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a PQO file directly in the browser:. Just drag the file onto this browser window and drop it.

Online PQO Text Viewer

Choose your .pqo file to analyze

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.PQO File Not Opening? How to Fix It:

The .PQO file extension can originate from different programs and isn't universally openable.

Identify the Source: These files often come from geochemical modeling workflows, suggesting USGS PhreeqcI. They may also appear in print production workflows using Komori PCC.
Check the Header: Open the file in a text editor or hex viewer to inspect the first lines.
- Readable text with chemical data or simulation results confirms a PhreeqcI output file.
- Unreadable binary characters or magic bytes like "PK" imply a different, potentially proprietary format.
Use the Original Software: Opening the file usually requires the original program. Try PhreeqcI or Komori PCC, and if uncertain, ask the sender.
Use this Webpage: Drag and drop the file into our viewer to detect the format, extract readable text or metadata, and preview it when possible.

Technical Data for PQO File Extension

Related files:

pqi, fgd

Mime type:

text/plain

a pqo PhreeqcI file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with PQO files

Associate the PQO file extension with the correct application.
Update your software that should actually open PhreeqcI files. Because only the current version supports the latest PQO file format. Search, therefore, e.g. on the manufacturer website after an available PhreeqcI update.
To make sure that your PQO file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .PQO file online - secure, fast, and no downloads needed.