All about QL Files

The QL file type is primarily associated with Progress.

QLFile Extension QL
File extension: QL
File type:  Results Configuration

What is a QL file?

QL files mostly belong to Progress by Progress Software Corporation. The .QL file (along with the .QC file) is generated during the installation of Results. The .QL (and .QC) files may be deleted, and the Results software will recreate them when the program is next started.

How to open a QL file

You need a suitable software like Progress to open a QL file. You need a suitable software like Progress from Progress Software Corporation to open a QL 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 QL file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a QL file directly in the browser:. Just drag the file onto this browser window and drop it.

Online QL Text Viewer

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.QL File Not Opening? How to Fix It:

QL files originate from various programs and aren't universally openable.

  1. Identify the Source: If received from a database administrator, it may be a Progress Results Configuration file. If from a software developer, it is likely a CodeQL query file.
  2. Check the Header: Inspect the first few lines using a text editor or hex viewer:
    • Readable code (e.g., import or select) indicates a CodeQL script.
    • Plaintext configuration parameters often point to Progress Software.
    • Unreadable binary characters suggest a compiled format or emulator data.
  3. Use the Original Software: The original program is usually required; try Progress Software, GitHub CodeQL, or ask the sender if you remain uncertain.
  4. Use this Webpage: Drag and drop your file into our viewer to detect the format, extract readable text, and preview when possible.

Technical Data for QL File Extension

Related files:
qlfile, qm, d1, wrx, b2

a ql Results Configuration is a special file format by Progress Software Corporation and should only be edited and saved with the appropriate software.

How to solve problems with QL files

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