Somebody might have a better way but you could use the 'Paste two files side by side' tool. However, this tool only works with 2 files (there may be versions of this tool that might work with more, which might be worth looking for on the toolshed). But you could set a workflow up with pastes file 1 and 2 to make 'file 1,2' . Then paste file 3 to 'file 1,2' and so on.... . This will end up with lots of duplicate copies of MYC, ERBB2, ERGF columns, which could all then be cut in a single final step using the Cut columns from a table. Obviously setting up a work flow with 70 steps will be a pain and there might be a more elegant way to do this.