Mac PSD files on External Hard Drive, Opening Corrupt on PC

[#1]

Hello,

For all my life I have been editing and keeping my photos onto my LaCie hard drive, the format is exFAT (if that helps with solving this). The files open fine on my macbook pro. I can edit the layers and everything. However, if I were to plug that hard drive onto my PC and try to edit them there, the files will either not open or, will be corrupt. But this only happens on my PC. I tried opening the .psd files on my PC and it would be corrupt but when I bring the files back to my macbook (thinking I damaged the files permanently), nothing changed and it opens just fine. Is there any way I can open my files on my PC instead of my macbook and not have it corrupted?