Try renaming it; your web browser or download manager may just have decided to drop the extension, possibly confused by the two periods in the name. Select the file and then left click on the name to change it, or right click on the file and select 'rename'.
If that doesn't help, check the file size. The BeyondDivinityEnglishPatch1.47.exe file should be 27,164,074 bytes (right click on the file and select properties).
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