How to use convertTDMS script and what is the most efficient file format to post-process data in MATLAB?

Question

Shuvodeep Bhattacharjya 2020-11-12

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https://ww2.mathworks.cn/matlabcentral/answers/646063-how-to-use-converttdms-script-and-what-is-the-most-efficient-file-format-to-post-process-data-in-mat

回答： Sylvain 2020-11-12

Iam working on a vehicle bench marking project and we are gathering GBs of data in .tdms format. I tried using the converTDMS function provided here : https://www.mathworks.com/matlabcentral/fileexchange/44206-converttdms-v10 . However, it throws an error related to a function date2str - "Unable to convert vector to string data". So i decided to convert .tdms to .csv or .xlsx or .xls or tab-delimited using a python script and then convert it to .mat format.

So my queries are as follows:

1.) Is there a solution to convertTDMS function ?

2.) Which file format would be most efficient considering each file to be 5 to 6 GB in size and have around 600 columns of data ? - .csv or .xlsx or .xls or tab-delimited

Any help would be appreciated.

Thanks