formatting text

[MaiMollare]

Good morning
I have to create a table-shaped text starting from an external text in my table.
when the amount the spaces are set with the tab instead of the simple space and this nx does not like I do not know why. Unfortunately the table is very long and I do not want to go to replace all tabs with otherwise I go crazy.
There is a solution that you can recommend.
Thank you.

 

[beppino]

maybe I did not understand the problem, but it is not enough to edit the text file before importing it into nx for example with excel or notepad and modify tab in space?