What Is a Quattro Pro File (.qpw, .wq1, .wq2, .wb*, and More) and How Do You Open One in 2026?

TL;DR

A Quattro Pro file is a binary spreadsheet or notebook from Borland or Corel Quattro Pro. Extensions such as .qpw (modern WordPerfect Office era), .wq1 and .wq2 (early Quattro Pro), and notebook .wb1, .wb2, and .wb3 do not open in Microsoft Excel natively. In 2026 your practical options are Corel Quattro Pro if you maintain WordPerfect Office, LibreOffice Calc for basic viewing of some legacy types, or Quattro Pro Converter for private, batch conversion to XLSX, CSV, PDF, and other modern formats—without uploading models to the internet.

What is a Quattro Pro file?

Quattro Pro began as Borland's challenger to Lotus 1-2-3 and Excel, and later lived on inside Corel WordPerfect Office. Across that history the on-disk formats changed: early releases used .wq1 and .wq2, the classic notebook family used .wb1, .wb2, and .wb3, and current WordPerfect Office installs often save .qpw notebooks.

These files are packed binary containers. They can include multiple sheets, formulas, named blocks, and presentation elements. That expressiveness is valuable for the original author—and a compatibility challenge for any app that never shipped a first-class import filter, which includes Excel.

Why Quattro Pro formats still matter in 2026

Long-tenured finance, engineering, and operations teams built pricing engines, forecasts, and capex templates in Quattro Pro when it was bundled with their toolchain. Like other pre-cloud spreadsheets, those files followed every NAS migration and divestiture data room—still carrying live logic in a format modern teams no longer install by default.

The risk is not nostalgia; it is access. When nobody can open the .wb2 that holds a depreciation schedule, the workflow stops even though the business still depends on the numbers inside.

How to open a Quattro Pro file in 2026

Pick the path that matches how much fidelity you need and how sensitive the underlying data is.

1. Corel Quattro Pro / WordPerfect Office (authoritative)

If you still run WordPerfect Office, Quattro Pro remains the reference implementation for its own formats. That is ideal for one-off validation, but many enterprises no longer deploy the suite widely, which pushes teams toward conversion.

2. LibreOffice Calc (free, limited fidelity)

LibreOffice Calc can sometimes open select .wq1, .wq2, and .wb2 files for a quick look. Complex macros, protected regions, and multi-sheet dependencies are where results diverge. Treat it as exploratory, not as the final archive strategy.

3. Quattro Pro Converter (local bulk conversion)

Quattro Pro Converter focuses on the formats Quattro teams still encounter—.qpw, .wq1, .wq2, .wb1, .wb2, and .wb3—converting them on Windows to XLSX, CSV, PDF, HTML, Markdown, or XLS without a cloud upload step, which keeps customer, pricing, and payroll data on hardware you control.

Convert for Excel and compliance, not just peek at a grid

If the end state is Microsoft 365, ERP loads, or searchable archives, exporting to XLSX or CSV aligns with how those systems already ingest data. PDFs remain useful when you need an immutable visual record for audit or legal workflows.

Quattro Pro Converter is designed for batch runs across folders so you are not hand-opening hundreds of .wb* files on a legacy VM.

Bottom line

Quattro Pro formats are still readable in 2026 when you treat them like the specialized binaries they are—choose either the original app, a lightweight viewer, or a local converter built for bulk modernization.