FICO Xpress Solver Extension (BETA)

This VS Code FICO Xpress Solver extension supports use of FICO Xpress Solver for solving and tuning matrix files.

License

The VS Code FICO® Xpress Solver extension relies on FICO® Xpress software, which is subject to the Xpress Shrinkwrap License Agreement.

By downloading this extension, you agree to the Community License terms of the Xpress Shrinkwrap License Agreement with respect to the required FICO Xpress software.

See the licensing options overview for additional details and information about obtaining a paid license for FICO Xpress Solver.

The extension also contains other, separate, distinct software which may be subject to other licenses.

Start here

A more detailed README can be found here.

Setup

This extension requires a valid installation of the FICO Xpress Solver. If missing, see the Xpress Installation Documentation.

What it does

• A dialog drives Solve/Tune execution with options to configure solver controls.
• Solver produces solution files (.slx); the tuner produces tuner results files (.xtr).
• The active .xtr can be visualised as a table.

How to open

• Status bar: click ▶ FICO Xpress Solve/Tune — the quickest way to start.
• Command Palette: FICO Xpress: Solver/Tuner: Open Dialog or FICO Xpress: Tuner: Visualize Active .xtr.
• Editor title button: appears automatically when a .mps or .lp file is open.

Limitations

• A working Xpress installation is required (including licensing and environment configuration).
• Very large .xtr files can take longer to render inside VS Code.
• Manual visualisation only works when the .xtr is the active editor tab and is located under tuneroutput/.
• Unknown control names in Extra controls cause the run to fail (they are not ignored).

Support

Please use this link: Ask-a-question

Copyright Information

©2026 Fair Isaac Corporation.

FICO is a registered trademark of Fair Isaac Corporation in the United States and may be a registered trademark of Fair Isaac Corporation in other countries. Other product and company names herein may be trademarks of their respective owners.

Patent(s): www.fico.com/en/patents