The only way to convert into Altium files is with the ASCII (.alg) Allegro file, which is created in Allegro (using Cadence's extracta.exe utility). I do not have Allegro, so I am unable to perform this conversion myself. I've seen threads similar to this on other product lines where tech support was able to email out the .alg version. I would appreciate the same being done for the MIMXRT1160.
Hello, yes, there are some cases where the RT Altium design files was shared, but the file was made when we had Altium License, we do not have all design of new EVK.