Import table from txt file with specific rows

Question

I have a .txt file written as

1 2

3 4

5 6

7 8

9 10

11 12

I would like to import it as three matrices according to the rows.

I used b = Import["d:\am.txt", {"Table", Range[1, 2]}]

Seems it does not work, "Data" will be normal terminated, but not in the form of matrix.. Is there any solution for importing data in the format of table by specifying rows?

Answer 1

Just rename "Table" to "Data"

Import["am.txt", {"Data", {1, 2}}]
(* {{1, 2}, {3, 4}} *)

P.S. delete empty lines in the text file if you have them

Answer 2

Assuming the data is stored in "matrix.txt", you can do the following:

m = Import["matrix.txt"];

temp = Partition[StringSplit[m], 4];

and finally form the matrices:

Partition[#, {2}] & /@ temp

This does the structure, maybe some type conversations are still necessary.