Resolution: Context Switch Deadlock was detected !!!

When I debug my solution which has an implementation of exporting data in a data set into an excel work book (while looping through the data set) it gives the following error in VS IDE,

The CLR has been unable to transition from COM context 0x4c4b68 to COM context 0x4c4cd8 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.