I have a spreadsheet with about 10,000 rows that I have a macro that imports data to from a .csv file and then formats the sheet. We've inserted 8 columns between what were columns a & b, which I now strip out at the beginning of the macro, then add the data (which doesn't have these columns and I don't want to add all those field delimiters), then I re-insert the 8 columns (columns B thru I). I would like to add a thin border around each of the cells in those columns. What is the best way to select these columns and add the borders in my macro? If it matters, these columns are blank and the other columns have data. Thanks.