Opening a WB3 File

The WB3 file type is primarily associated with Quattro Pro.

WB3	File extension: WB3
	File type:	spreadsheet file

What is a WB3 file

WB3 files mostly belong to Quattro Pro.

The WB3 file is a Quattro Pro spreadsheet file that employs the Microsoft Compound file format. This means the file holds data in a multi‐stream container, much like a mini file system, where different data elements (such as cell values, formulas, and formatting) are stored in separate streams.
Key details sourced by FilExt.com include:

Purpose: To store spreadsheet data in a structured, compact format.

Usage: It is designed for use in the Quattro Pro application, which manages spreadsheet tasks.

Structure: The Microsoft Compound format enables multiple embedded data streams within one file.

Versioning: The numeral “3” in WB3 typically indicates the version of the file format.

FilExt.com tip: For viewing or editing these files, using Quattro Pro or compatible conversion tools is necessary.

How can I open a WB3 file?

You need a suitable software like Quattro Pro to open a WB3 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 WB3 file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a WB3 file directly in the browser:. Just drag the file onto this browser window and drop it.

Online WB3 Text Viewer

Choose your .wb3 file to analyze

or drag and drop it here

Online File Viewer

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WB3 file format:

A file format defines how the data in the file is structured. Often, the file format can be deduced from the file extension or the initial bytes (called the signature). However, different programs can use the same file extension. Furthermore, a file extension can be renamed incorrectly and double-clicking on it will then display an error when it is opened. So a detailed analysis of a file is vital in order to determine the format and the associated program. Below is our analysis of the WB3 files:

WB3 is not a commonly used file extension and mainly uses a defined WB3 format. The file formats most commonly found in WB3 files are:

• 98% of all WB3 files are based on the Microsoft Compound File format, also known as Compound File Binary File format (CFBF or CFB) or OLE2 Compound Document format. This file format is used by previous Microsoft Office programs and other Windows programs and stores the data in complex containers and sections. The first 8 bytes of the CFB format are D0CF11E0A1B11AE1 (which looks like "DOCFILE"). WB3 files contain an app name Quattro Pro for Windows 7. The CLSID (class identifier of a Windows component object) is 0002b400-0000-0000-c000-000000000046 or ac515490-fd1a-11d4-b6f6-0090271befb3. The file contains sections that are named something like SummaryInformation, PerfectOffice_MAIN and PerfectOffice_OBJECTS. The files are often between 11 KB and 340 KB in size. The file type was used 20 years ago. Files like these are sometimes connected to list, budget and stats.

The remaining 2% of all WB3 files are files with no common format. If you want to find out which format your WB3 file belongs to, just click on the button "Choose your .wb3 file to analyze".