Sure, I can help you with that! Here's how you can add the suffix "scc" to multiple cells in a column:

1. Select the cells where you want to add the suffix. You can do this by clicking and dragging your mouse over the cells, or by clicking on the first cell and then holding down the Shift key while clicking on the last cell in the range.
2. Once you have selected the cells, click on the "Home" tab in the Excel ribbon.
3. In the "Editing" group, click on the "Fill" button.
4. In the drop-down menu, select "Series".
5. In the "Series" dialog box, make sure that the "Columns" option is selected in the "Series in" section.
6. In the "Type" section, select "Linear".
7. In the "Step value" field, enter "1". This will ensure that each cell in the selected range is incremented by one.
8. In the "Stop value" field, enter the number of cells you want to fill. For example, if you want to fill 10 cells, enter "10".
9. In the "Trend" section, select "None".
10. In the "Edit Series" dialog box, click on the "OK" button.
11. Now, all the cells in the selected range should be filled with sequential numbers.
12. Next, click on the first cell in the range where you want to add the suffix "scc".
13. Type in the suffix "scc" after the existing data in the cell.
14. Press the Enter key to move to the next cell in the range.
15. The suffix "scc" should now be added to the right of the existing data in the cell.
16. Repeat steps 12-15 for each cell in the range where you want to add the suffix "scc".

That's it! You should now have the suffix "scc" added to multiple cells in a column. Let me know if you have any questions or if there's anything else I can help you with.