: Facilitates flexible data transfer between instruments and PCs. Coordinate Editor

Use a USB 2.0 port (not 3.0) and set your instrument to "GSI Data Transfer" mode. Alternatively, copy the .gsi file to your hard drive first, then import via File → Open .

The most common issue users encounter with Leica Survey Office 2.21 involves establishing a stable connection between the instrument and the PC. Supported Instruments

Leica Survey Office 2.21 is a legacy software suite used to manage data between Leica total stations and computers. While it has been succeeded by newer platforms like Leica Geo Office and Leica Infinity, many professionals still rely on version 2.21 for older hardware like the TC407 or TC805. What is Leica Survey Office 2.21?

Ensure you install the exact driver matching your adapter chipset and Windows version. Prolific chipsets often require specific older drivers to function correctly on Windows 10/11. Virtual COM Port Assignment

Note the COM port number assigned to your cable (e.g., COM3 ). If the number is higher than COM4 , right-click the device, go to , and change the COM Port Number to an open port between COM1 and COM4 . Leica Survey Office struggles to recognize high-indexed COM ports.

View and edit point data before importing it into CAD software.

The installer for Leica Survey Office 2.21 is typically a 16-bit or 32-bit application. Modern 64-bit versions of Windows (Windows 10 and Windows 11) do not natively support 16-bit installers. If you double-click the setup file on a modern PC, you will likely receive an error stating the app cannot run on your PC. 2. Hardware Connectivity (USB to Serial)

Verify that the download package explicitly contains the payload.

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: Enables users to define custom data output formats to match specific CAD or GIS requirements. 3. Compatibility and System Requirements

Ensure the assigned COM port number in Windows Device Manager is set between COM1 and COM4. Leica Survey Office often fails to detect ports higher than COM4. Download and Installation Steps