I frequently face the following requirement, and would appreciate some advice from you all.
These files may have tens or even hundreds of lines (we can think of it as a single column of data).
Let’s assume a file has one column and consists of 9 lines. I need to split this into 3 columns, so lines 1-3 remain in Column A, lines 4-6 are moved to Column B, and lines 7-9 are moved to Column C. The columns should be separated by commas.
Original File:
1
2
3
4
5
6
7
8
9
Desired Output:
Column A,Column B,Column C
1,4,7
2,5,8
3,6,9
If the file has 10 lines, then, compared to the previous example, it would have a Column D only contains the last number 10.
Desired Output:
Column A,Column B,Column C,Column D
1,4,7,10
2,5,8
3,6,9
The above is just a simple example. In fact, the number of lines to split each time may vary — the example used 3, but it could also be 10 or another number.
Do you have any idea how to handle it quickly? Now I handle them manually.