PAYMAN RAJAI wrote:
Thank you.
But it overwrites the previously calculated values.
No, it doesn't. You decide where the data should be written. An Excel file is not a sequential data file, so there can't be that sort of append. You have to provide some sort of counter to be able to write the data at the correct position.
As an alternative you could read in the whole Excel file with READEXCEL in a Mathcad matrix, stack that matrix on top of the new data and write the new matrix with WRITEEXCEL at position A1.