Hello, I use aseprite, so it's on PNG, but I think I can add PSD files later today, but if you don't want to wait I think there's some websites that convert PNG to PSD.
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Aesprite uses the .aseprite file format right? That would be easier for you than creating/transferring the files to PSD assuming your work is already in .aseprite format. If it is not too much trouble, I believe the .aseprite format would be best as it would keep the layer information intact for the transparency.
If you decide to do so, no need to rush I am in no hurry.