[Discuss-gnuradio] How to import in Gnu Radio IQ.wav files recorder with SDR#?

Hi,

I have recorded with FCD pro+ and SRD# some IQ.wav files.

When I try to import them in Gnu Radio companion as a "File source" and plot the frequency spectrum with the "FFt sink" I get nothing.

Are the IQ.wav files produced by the SDR# recognizable from the Gnu radio?

Thanks!