importing side by side

I have a folder A which contains a bunch of files. I have a code to import all the files in that folder (a loop) while formatting the import (delimiting it with a space...). Now i need to edit the code so that it imports all the files side by side leaving 2 columns space in between each data set (right now it imports the files one below the other going downwards and i want them next to eachother). Also, I want to import the name of each file at the top:
File A-column-column-File B
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Here is the code I already have. Can someone help me edit it and add the formatting I need please?

Thanx

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