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Hello All,

I have created a window application which used for append the excel file content.
I used Microsoft.Office.Interop.Excel namespace for append Excel file. Now all things are working fine. I install this application in one of system which is not having MS office, now in that case it show error.
I install the Re-distribute package of Microsoft and that also not work.

Please give some idea or help regarding this.

walterhevedeich 26-Sep-11 3:37am
After you have installed the redistributable, what error were you getting?
gaurav003 26-Sep-11 3:45am
The error is "object refrence not set to the instance of an object" while creating workbook.

1 solution

Which re-distribute package you installed ?
You need a licensed Excel installed in the client system, otherwise the Interop may fail.
gaurav003 27-Sep-11 1:53am
I have downloaded from this link

Please suggest what i can do for that.
Madhu Nair 27-Sep-11 7:11am
The downloads are correct. You need to install Office/Excel in the client system or in other words you can't use the interop assemblies without having office installed.

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