EXE file package repair

No. : (

But you can try downloading it from a different place, or via a different method - there are several, like FTP/HTTP/Torrent .

Definitely no. If the checksum doesn't match, then the smallest bit error in any file makes it unreadable. That's why there are checksums.

Certain compression utilities can add cyclic error checks in order to compensate for this, so that's why it's a better idea to compress or split a large file first before downloading. In some cases you can then even try to repair broken files, or at least detect it's broken.

For the next time, just use the checksum or look for another way to download the file, it all depends on what it actually is.