In LabChart 7.1 for Windows you can export or copy and paste a number of things as text:
- the data from the Power Spectrum Density plot (the upper plot in the Spectrum View)
- any of the channel calculations (using Save As Text)
- any of the Data Pad calculations
However Spectrum does not provide a convenient way to export the full spectrogram (the lower plot in the Spectrum View). The spectrogram contains a large amount of data, so exporting as text may not be practical. In many cases I think that software being used to provide further analysis on this data could also readily generate it from the raw signal - for example MATLAB can do this. If that's not the case then it may be possible to write a LabChart script to run through the file exporting the data FFT by FFT.
Were you hoping to use a software package to do further analysis, or were you thinking of writing something yourself?