SaveAs in Excel by C#

Hello, f_gharavi

If the Excel file is just missing the extension "xls" or "xlsx" you can change the extension using C#:

Path.ChangeExtension(path, ".xls");

* If is not excel, then you need to create an excel file, fill it with your data, according to the specific parser of your data etc.

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If you just want to copy the file to another location and change it's name, use CopyTo:

string DestinationPath = @"D:\NewFile.xls";
FileInfo fi = new FileInfo(@"C:\SoureFile.xls");

fi.CopyTo(path2);

Cheers,
Edo