GS-Calc

GS-Calc 24.3.1

GS-Calc is a modern spreadsheet with unique capabilities for processing big data sets.

  • By Citadel5
  • Trial version
  • Updated Oct 7, 2026
Download for Windows

About GS-Calc

GS-Calc is a spreadsheet that can be used for various purposes thanks to its scalability - editing/cleaning CSV, text files with millions of rows, splitting/merging files in the XLSX/XLS, text and other file formats, building complex data models with millions of formulas and around 450 built-in functions. GS-Calc features fast binary lookup's with dynamic internal sorting when processing tens of gigabytes of data or more, 4GB+ workbook files, 32 million rows x 16,384 columns, a unique feature of organizing worksheets in a tree form, pivot tables with 32 million rows, up to 64 processor cores during calculations, built-in Monte Carlo Simulations, array/"spilling" formulas for any functions written by users in C/C++ as plain DLL libraries even to replace all built-in functions; Python integration with UDF functions. You can work in up to 100 synchronized panes for each open workbook to monitor results in various sheets and their regions. GS-Calc can be installed on any portable storage device and used without performing any registry modifications.

Technical details

PublisherCitadel5
Version24.3.1
Release date2026-10-07
LicenseTrial, proprietary
Installer typeexe
Architecturex64
Package IDCitadel5-JP.GS-Calc

Install GS-Calc from the command line

Install with Windows Package Manager
winget install --id=Citadel5-JP.GS-Calc -e
Update to the latest version
winget upgrade --id=Citadel5-JP.GS-Calc -e
Uninstall
winget uninstall --id=Citadel5-JP.GS-Calc -e

32-million-rowsGS-CalcPython integrationbig-datachartscsv-editordatabase-editorfilteringin-cell-chartsinteger-programminglinear-programmingmonte-carlo-simulationspivot-tablesportable-spreadsheetquadratic-programmingspreadsheet

GS-Calc version history

  • 24.3
  • 21.5.1
  • 21.5
  • 21.3.0.0
  • 21.3
  • 21.1.2

Frequently asked questions

Is GS-Calc free?

GS-Calc is commercial software from Citadel5. You can download it for free and use it as a trial before buying a license.

What is the latest version of GS-Calc?

The latest version is 24.3.1, released on Oct 7, 2026.

Is it safe to download GS-Calc?

The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with c6b7b74de969ae108a89504c387c46e7d7d0e049c9e697a8c1c885a267c1cf8f.

Which Windows versions does GS-Calc support?

GS-Calc runs on Windows and is available for 64-bit (x64) systems.

How do I uninstall GS-Calc?

Open Settings › Apps › Installed apps, find GS-Calc and select Uninstall. From the command line, run winget uninstall --id=Citadel5-JP.GS-Calc -e.