How to make a Table from Imported data?

Question

I have imported into Mathematica notebook data from TXT file. I would like to make it as a Table afterwards, so I can do some calculations. I wrote:

I wrote:

dat = Import["PirmaisPikis.txt"]

It gives out:

1   7
2   7
3   2
4   2
5   2
6   3
7   2
8   3
9   2
10  2
11  3
12  2

If I write:

dat = Import["PirmaisPikis.txt"];
fabri = Table[{dat[[i, 1]], dat[[i, 2]]}, {i, 600}]

It gives me out ( and does it 3 times):

Part::partd: "Part specification" 1 7
2   7
3   2
4   2
5   2
6   3
7   2
8   3
9   2
10  2
11  3
12  2

Same thing If I write:

dat = Import["PirmaisPikis.txt"];
fabri = Table[{dat[[i, 1]], {i, 1, Length[dat]}]

If I write:

dat = Import["PirmaisPikis.txt"]; 
fabri = Table[{dat[[i, 1]], dat[[i,2]]}, {i, 1, Length[dat]}]

It gives me out nothing {} What is the problem?

(You can import with Import["https://pastebin.com/raw/w9ys8Rfd"].)

Answer 1

The problem is that Mathematica defaultly imports the file as a single string, not a table. You have to import the table form the imported string:

dat = ImportString[Import["pirmaispikis.txt"], 
   "Table"]; 

or import the file as a table by Import["pirmaispikis.txt","Table"]

gives the table you want and

fabri=dat;