Version 2.21 is widely remembered as one of the most stable releases of the software before it was superseded by Leica Geo Office. Many surveyors prefer this version because it is lightweight, requires no internet connection to run, and supports the older, proprietary file formats used by instruments like the TCR300, TPS1100, and GPS500 series.
If you are using a modern Leica instrument (such as the TS15, TS16, or Viva series), this software is likely not for you—you should be using Leica Infinity or Captivate. However, if you are archiving data or dusting off a TPS700 or TPS1100, LSO 2.21 is essential.
Commands to compute SHA256 on Windows (PowerShell): leica survey office 2.21 english download
Get-FileHash -Algorithm SHA256 .\LeicaSurveyOffice_setup.exe
Before you install, ensure your PC meets these specifications:
| Component | Requirement | |-----------|--------------| | OS | Windows 7 SP1, Windows 8.1, or Windows 10 (32-bit or 64-bit – note: LSO is a 32-bit app but runs on 64-bit with compatibility mode) | | CPU | Intel Core 2 Duo or better (1.6 GHz minimum) | | RAM | 1 GB (2 GB recommended) | | Disk Space | 500 MB free | | Display | 1024 x 768 resolution, 16-bit color | | Other | USB port (for instrument connection) or Bluetooth dongle | Version 2
Note for Windows 10/11: You may need to install the .NET Framework 3.5 (enable via Windows Features) and run the installer as Administrator in Windows 7 compatibility mode.
Published: May 4, 2026 | Category: Surveying Software | Reading Time: 6 minutes Before you install, ensure your PC meets these
Leica Survey Office (often abbreviated as LSO) allows surveyors to:
Version 2.21, while not the latest (Leica has since moved to Infinity and other platforms), remains useful for older hardware like the TPS400, TPS700, or RX1200 series.
Leica Geosystems often provides a free Viewer version of their newer software (Leica Geo Office) on their official support site. This viewer can often open older GSI files and projects created in Survey Office. Before hunting for a legacy download, check the official Hexagon/Leica support portal to see if LGO Viewer meets your needs.
If you manage to obtain a legitimate copy of LSO 2.21 in English, here is exactly what you can expect: