TDMS Format Files

R2026b

Read and write data to NI™ TDMS format files; read multiple TDMS files in a datastore collection

With Data Acquisition Toolbox™ you can access NI TDMS format files on Windows^® and the Debian^® distribution of Linux^®. You can read or write individual TDMS files, or with a TDMSDatastore object you can read collections of TDMS files simultaneously. You can also read data into tables or timetables.

The TDMS functions are supported in MATLAB Online. (since R2026a)

Functions

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TDMS File

`tdmsread`	Read data from TDMS file (Since R2022a)
`tdmswrite`	Write data to TDMS file (Since R2022b)
`tdmsinfo`	Information about TDMS file (Since R2022a)
`tdmsreadprop`	Read properties as single row table from TDMS file (Since R2022a)
`tdmswriteprop`	Write properties to TDMS file (Since R2022b)
`tdmsconvert`	Convert file to TDMS v2.0 compliant format (Since R2024a)

TDMS Datastore

`tdmsDatastore`	Datastore for collection of TDMS files (Since R2022a)
`read`	Read data in TDMS datastore (Since R2022a)
`readall`	Read all data in TDMS datastore (Since R2022a)
`preview`	Read first 8 records from TDMS datastore (Since R2022a)
`hasdata`	Determine if data is available to read from TDMS datastore (Since R2022a)
`reset`	Reset TDMS datastore to initial state (Since R2022a)

Tools

Import Tool

Import data from TDMS file (Since R2026b)

Live Editor Tasks

Import Data

Import data from TDMS file in Live Editor (Since R2026b)

Topics

Troubleshooting TDMS Applications
Diagnose and solve issues with TDMS file access.

Related Information

The NI TDMS File Format
Datastore

Featured Examples

New

Classify Parkinson's Disease Severity from TDMS Data Using Deep Learning

Read brain signal recordings from TDMS files, classify Parkinson's disease (PD) severity using a deep learning model, and simulate adaptive deep brain stimulation (DBS).