Hello,

On Mon, Nov 16, 2020 at 08:43:12PM -0600, o1bigtenor wrote:

I managed to delete a file that would require a lot of hours to replace.

[…]

Looking for suggestions on how to recover the file.

This is really a filesystem question - files are not something that
RAID concerns itself with. So, what filesystem and what type of
file? You might get lucky running photorec (it's not just for
images) on the block device while it's unmounted.

    https://www.cgsecurity.org/wiki/PhotoRec_Step_By_Step

Cheers,
Andy