@tejaswi.pandava,
Thanks for your query.
There are multiple ways to accomplish the task via Aspose.Cells APIs. If you have data into some arrays/list, you may directly import it via respective method, see the sample code for your reference:
e.g
Sample code:
Workbook workbook = new Workbook("e:\\test2\\Book1.xls");
//Instantiating new workbook
//Workbook workbook = new Workbook();
int row = 10;// eleven row.
int col = 4; //E column
Worksheet workbook = workbook.Worksheets[0];
double[] XValues = { 2.4, 0.3, 0.2, 1.1, 2.3, 2.1};
//Import data into E11:E16 range of cells.
worksheet.Cells.ImportArray(XValues, row, col,true);
wb.Save("e:\\test2\\out1.xlsx");
There are more data importing options for different data sources which Aspose.Cells supports, see the document for your reference:
https://docs.aspose.com/display/cellsnet/Import+Data+into+Worksheet
Alternatively, you may insert data cell by cell into the worksheet. This is more like a manual way, see the document for your reference:
https://docs.aspose.com/display/cellsnet/Add+and+Retrieve+Data
Hope, this helps a bit.