i want to take the handle of the category1 and want to sum 9.5 and 3.5 and then want to insert the same record in Excel and same with category2 and so on…
lookup the NotesViewNavigator class on designer help. It gives you enough flexibility to navigate through view entries (documents and categories) and retrieve values.
You could also use column totals to make the calculation at the view level rather than in the code.
You can create excel.application object to create your excel workbook and transfer your data.
I just think you will get a much better outcome if you keep to the same thread and include in your posts what you have tried/how far you have got/what stumbling blocks you are coming up against
This is a great community on this forum - we all do want to help each other - but you can only help those who help themselves
Have a good day and keep cracking away at that view!