First read all three CSV files in UiPath using the ‘Read CSV’ activity with the delimiter set to | and IncludeColumnNames set to False, then merge them into a single DataTable using the Merge DataTable activity. Next, open your template Excel file and write the combined data into the “Ori” sheet starting from cell A3 using the Write Range activity. Once the data is written, copy the formatting from row 2 of the template by selecting it as the source range and pasting formats onto the entire data range below using the Copy Paste Range activity with the paste option set to “Formats.” After applying the formatting, delete row 2 using the Delete Rows activity to keep only the data with proper formatting applied. Finally, save the Excel file, and you will have all three CSV files combined, correctly formatted, and stored in the template.
use read csv activity for each file with “add headers” unchecked, merge data tables using merge datatable activity, use excel application scope to open template file, use write range starting at cell a3 to write merged data, use copy range to copy formatting from row 2 and paste it to data rows, then use delete range activity to delete row 2.