Opening DFW Files

The DFW file type is primarily associated with Derive.

DFW	File extension: DFW
	File type:	worksheet file

What is a DFW file

DFW files mostly belong to Derive. The DFW file extension is used by several software systems, each handling different kinds of data. It is most commonly a Derive worksheet file used in math programs to store formulas, calculations, and annotations.
Other usages include:

• Document Template Files that are often compressed (using ZIP) for applications like Document! X or DocuWare configurations.
• Database Files such as those for darts tournament management that use the JetDB format.
• Dynamic Workspace Files in trading environments (for example, in MetaTrader 4) which store stock trading data.
• Firmware Descriptor Files used in firmware updates, where one variant employs an XML structure (as seen with Datalogic) and another serves as a firmware file for devices running on Qualcomm technology.

To open and view a DFW file, you should use the software that originally produced it. For instance, Derive-based DFW files open with DERIVE for Windows (Derive), while trading workspaces use MetaTrader 4 (MetaTrader 4).
FilExt.com note: Check the file’s origin and contents to decide which tool is required.

How to open a DFW file

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

Online DFW Text Viewer

Choose your .dfw file to analyze

or drag and drop it here

Online File Viewer

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DFW file format:

To find out what program is needed to open DFW files, you need to determine the file format. Often, the file format can be deduced from the file extension or the initial bytes (called the signature). File extension, signature and file format must match; otherwise errors will occur when the file is opened. Exact knowledge of the format is therefore important in order to solve problems occurring in files. Below you will find our evaluation of the DFW files:

The DFW file extension is rarely used and includes different formats for different programs. However, the following two file formats are common:

• 55% of all DFW files are associated with Derive for Windows. The content consists of binary data as well as text and words. DFW files are between 940 bytes and 290 KB in size. The file type was developed only in the last few years. The following keywords are characteristic: Derive version, Derive version 6, file saved, Precision:=Exact, PrecisionDigits:=10, Branch:=Principal, Notation:=Rational and NotationDigits:=10. These files are attributed to practica.
• 9% of all DFW files start with the bytes !C4 crucial for this file format. They consist of unreadable binary data. A typical file size is 67 MB. Certain words are almost always found in the files, such as boot, bmfs, efs2 and modem. These files are attributed to dtlwm.

The remaining 36% of all DFW files are different files with different signatures, the following 5 formats can be found: JetDB, config and XML. These files are often connected to template, export, docx, lmsd or dtlwm. If you want to find out which format your DFW file belongs to, just click on the button "Choose your .dfw file to analyze".