It looks like your report was not presented in the best way to export Excel, and it is not Visual Studio or the export options that are the problem here. Depending on your version of Crystal, some tips:
1) Make sure that all column headings have the same width and left position as the data to which they refer.
2) Minimize the spacing between column headings, as well as the spacing between rows of data.
, CR8.5, , , . 1 2 . , Excel, , Excel.