Quizlet longterm learning data to Anki / Put Audio on already existing sets

Hi everyone,

I'm a victim of "Quizlet is not providing long term learning anymore" and then chose logically to move on Anki. "Fortunately", Quizlet allow to transfer all your long-term data into Anki, which is great because I use this app to learn japanese from english and have already put more than 6000 words by myself in this application.

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The problem now is a big one for me ; when I transfer this data from Quizlet to Anki, I don't have any audio, they didn't transfer it apparently. I have all my data, then I can continue to learn as if I was still on Quizlet, there's no problem for it, but without the audio, which is a big problem for a language like japanese. I know that there is an add-on to tranfer Quizlet with audio directly but it doesn't include the "long term data". So basically, my question is, how to put/download audio on already existing sets without doing it word by word ?

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If someone knows the answer, if someone is in the same case as me, please help me, I'm becoming crazy. I would never imagine myself struggling that much to study something though.

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Thank you !