Hi,
Thank you for using DataGridView Extension and also for your feedback!
The issue you have mentioned is new for us. In general you should always get an error if the export fails. In order to fix it we will need as much information as possible for your development environment (versions of OS, VS, Windows account etc.) and if possible please provide some code sample. Do you export to Excel manually by direct call to the DGVExcelExporter class or you are using the extension UI to initiate the export? If you are starting the export manually you have to attach to the event ExportFailed to see if an error has been reported.
Office 2007 is completely supported by the DGV Extension so this should not be the problem.
Keep in mind that if you export large amount of data (i.e. more than 1000 rows) the export might take long time. To reduce the export time set both options 'Export images' and 'Export visual styles' to false or uncheck them in the editor before the export.
Sincerely yours,
Support Team