It is 'normal' Windows -installer, be sure that the exact name of the file is EB1.1.exe and that is size is 786 MB (824.204.729 Bytes).
FileFront is sometimes buggie, depending on your browser. If you have received a file with another size, you'll have to re-download. Using torrent will give you a clean and working file btw.
XSamatan
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