CFL Converter

Extract text from CFL files

Select File
Drop or upload your .CFL file

Online File Converter

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How to extract text from your CFL file

Click the "Select File" button above, and choose your CFL file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.

Convert CFL to another file type

To convert your CFL file to another format, you need ClassFlow or other Page Layout software.

CFL to CFG
CFL to CNF
CFL to PDA
CFL to TMP
CFL to TEMP
CFL to CACHE
CFL to LOG
CFL to BAK
CFL to OLD
CFL to NEW
CFL to PART
CFL to DOWNLOAD

Convert a file to CFL

To convert other file formats to the "Interactive Lesson File" file type, you need software like ClassFlow or a similar tool.

DEVICE to CFL
CACHE to CFL
SOCK to CFL
SYMLINK to CFL
PID to CFL
MOUNT to CFL
FIFO to CFL
LOG to CFL
PIPE to CFL
TMP to CFL
JUNCTION to CFL
TEMP to CFL

About CFL files

The .CFL extension is an ambiguous format primarily shared between Promethean ClassFlow interactive lessons and legacy CorelFLOW diagrams.

For educators, a .CFL file acts as a container for ClassFlow lesson activities, whiteboard slides, and quizzes. These files are essentially ZIP archives containing XML data and media assets. The main frustration here is the cloud-centric nature of the Promethean ecosystem; offline .CFL files are often useless without the proprietary software or an active internet connection to upload them back to the platform. They are not natively supported by web browsers or standard office suites.

Alternatively, if you are dealing with older archives, the file is likely a vector chart created by CorelFLOW, a diagramming tool from the 1990s. These utilize the Microsoft Compound file format but are now largely obsolete. Opening them in modern versions of CorelDRAW or Microsoft Visio is hit-or-miss, often resulting in missing shapes or corrupted text.

Best Conversion Targets:

For Archiving & Sharing: Convert to PDF. This flattens the interactive elements of a ClassFlow lesson into viewable slides and locks the layout of CorelFLOW diagrams so they can be viewed on any device.
For Web Use: Convert diagram exports to PNG or JPG for easy embedding in emails or websites.
For Vector Editing (CorelFLOW only): Attempt conversion to SVG or EMF to retain scalability, though proprietary object definitions may be rasterized.

Convert.Guru analyzes your CFL file, detects the exact format, and lets you read the text inside.

Users also converted CHKN, CFA, PDF, FLIPCHART, YAR, PWB, CFG, CNF and PDA files.

The CFL Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our CFL converter.