That is exacrly the problem I am having. But the issue is not just with one particular file, but with almost every file I edit\create.
I have used a number of apps besides Audacity and the result is the same, so it is not Audacity.
The files are originally MP3 files I have recorded, then cleaned and trimmed, and saved as 16-Bit PCM 44100hz Wav files.
The weird thing is, if I convert the original files to Wav using Free Audio Conveter they import into C2 as expected.
But if I edit them, then C2 either freezes(almost every time), does not create the OGG file, or says the format is not recognised, when trying to import them.
At present it is looking like I will be unable to create my own audio files, which makes including credits for other peoples work a nightmare.