CLW file format description

Many people share .clw files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .clw file can be edited, converted or printed with. On this page, we try to provide assistance for handling .clw files.

3 filename extension(s) found in our database.

.clw - Visual Studio ClassWizard Data

The CLW development files are related to Visual Studio. The CLW file is a Visual Studio ClassWizard Data. ClassWizard is a Visual C++ tool that helps you create and manage the classes in your program.

Visual Studio
Development files
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Visual Studio ClassWizard Data related extensions:
IBM Rational XDE Model Data
Milnta APL Transfer Function Data
VersaPro Variable View Table
Netscape Navigator Java Classes File
MCS Component Policy Editor Link Component
Milinta APL Unix SAX Workspace

.clw - Clarion Source Code

The CLW development files are related to Clarion. The CLW file is a Clarion Source Code. Clarion is a software development tool to help you get your business applications completed up to 10 times faster. Clarion features a Template driven Code Generator that automates the creation of complete Database Applications. The Clarion seems to be no longer supported.

Development files
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Clarion Source Code related extensions:
Clarion for Windows Application
Clarion App Backup
Clarion for DOS Source Code
Clarion 7 Project
Clarion for Windows Embed Points Data
Clarion Database Keys

.clw - Grade Organizer Project

The CLW project files are related to Grade Organizer. The CLW file is a Grade Organizer Project. Grade Organizer is an electronic gradebook software for Microsoft Windows. The Grade Organizer seems to be no longer supported.

Grade Organizer
Project files
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Grade Organizer Project related extensions:
Colasoft Capsa Project
ATLAS.ti 7 Copy Bundle
RPG Maker 2003 Project
Storyboard Pro Project
DeckTools Deck Project
HAHTsite Java Project

Naturally, other applications may also use the .clw file extension. Even harmful programs can create .clw files. Be especially cautious with .clw files coming from an unknown source!

Can't open a .clw file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .clw file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

c1w, ciw, ckw, cl, cla, cld, cle, cls, cmw, cow, cpw, cw, cwl, dlw, flw

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

ArcInfo Geocoding Classification Data
RealFlow Project
Java Class Data
GP-Pro EX Library
ClamAV Local Database
Fluke LinkWare Database

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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If you have useful information about the .clw file format, then write to us! >> CLW file