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Third-Party Tools for Reading and Writing to TDM/TDMS Files

Updated Dec 10, 2025

Reported In

Other

  • Notepad
  • Microsoft Excel
  • MATLAB
  • OpenOffice.org Calc
  • Python

Issue Details

How can I read and write TDM/TDMS files with software products that are not designed by NI?

Solution

The section 'Writing and Reading TDMS Files with Third-Party Programming Software' from the NI TDMS File Format document addresses multiple tools recommended by NI to read and write to TDM/TDMS files using third-party software. These consist of the TDM C DLL the OpenOffice.org Calc and MATLAB TDM Example User Guide. 

In addition to those, it is possible to interface with TDM/TDMS files through TDM Excel Add-In Tool for Microsoft Excel User Guide and Notepad. In DIAdem 2018 and later, metadata is compressed by default to minimize the file size. To interface with TDM/TDMS files developed in those DIAdem versions using Notepad, make sure TDM/TDMS files metadata is not being compressed. Metadata compression settings can be found in DIAdem Settings: NAVIGATOR dialog box . 

npTDMS is a tool for interfacing with TDMS Files using Python.

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