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Tds Error: TdsErrNotTdsFile(-2503)



I have a cRio that records data in the tdms file format. After testing last night, I tried to open one of the files but got the error described in the subject line. After searching around it looks like NI might be able to recover some of the datafile. Is this possible?


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Hi there!


It may be possible to recover the file, but it depends on where the corruption is located and how affected the file is. Take a look at the following articles that should point you in the right direction. Unfortunately, I do not believe NI will be able to assist in recovering the data.


TDMS File Format Internal Structure:



TDMS Repair Tool:


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