I have an image (logo) file with TFT extension, I want to know how to explore it and with what software I could view the image and modify it. THANKS
It will help if people would be able to access that file; I get an "access denied".
It might also help if you tell us where that file came from; it might be a compiled nextion file (nxt-doc/File Formats/TFT.md at main · UNUF/nxt-doc · GitHub) but that is just a guess.
You can explore it using a hex editor. The first few bytes might indicate the type of file and maybe there is a header indicating the application that generated the file.
I don't see the exact file signature, but here is where I would start. It almost looks like a bitmap with a different file sig.
but it says that the file extension is PI2
what software opens this type of file?
Maybe something in here will get you on the way: PI2 format - Google Search
PS
I do not think that it's a PI2 format as that seems to be an encrypted format which I would guess would not result in series of 0xFF.