GIFs can be animated and so it is possible that there is some subliminal message in one or more of the frames, but if it is a static image then what you see is what you get.
Why do you think there is some hidden message in this image?
If this were me I would just try Notepad first of all. Either drag the file into an open Notepad window, or right click the file, select "Open with" and choose Notepad, but making sure that the "Always use this application to open this type of file" is not selected.
If the file is large, more than a few hundred KBs then Wordpad would be better.
Mark
I have a .gif image that I'm certain contains hidden text. I have tried Steganography without success. I have run it through a HEX editor but nothing "jumps out", can anybody suggest something, please?

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