Can LGPE mons sent to SwSh be sent back to LGPE?

[lmbosma2010]

Hi, everyone! I have a question.

I recently modded my Switch and have been using pkhex for two days (cloning shinies I caught and placing them into other games of mine to complete a living shiny dex in all my games eventually). So my question is- If I caught a shiny in LGPE and already sent it to SwSh using home... could I open both files at once on my computer and drag and drop the shiny from SwSh back to LGPE?

Outwardly, I know the answer is no, I tried it and got the "attempted to load an unsupported file type size" error.

But I was hoping there is a way for me to recompress the shiny to a LGPE format again (I just don't know how).

Any advice? Or a lost cause? Thanks for the help with my silly question! - Lauren

[theSLAYER]

Legitimately no. 
 

however if you load PKHeX in “Hax mode” (check startup options) it would be possible; PKHeX would provide the best guess and convert down for you.

[lmbosma2010]

Thank you for the answer! I’ll looking the Pokehax when I have time, I appreciate your response, thanks!!