how to double the content of a file

I've an ASCII file contains a two dimensional array of size 360X720, with all 1's & 0's. I want to double the 开发者_开发百科size of that array horizontally like 720X720. By repeating the same content. How can I do that from notepad or notepad++? Suggest me if there is any macro in the notepad++.

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Rectangular selection FTW

• rectangularly select your array (holding alt key)
• copy
• move caret at the end of first line
• paste

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Mmmm not sure you can.

In gvim (download):

you'd do:

ggC-q$GyP

1. gg (go to first line)
2. C-q -- start visual block select mode (assumes behave mswin; if you have behave xterm (default except on windows) use C-v instead)
3. $ extend block selection to end of line
4. G extend block selection to last line (if you have empty trailing lines, move cursor back up or do }k$ instead)
5. y - yank selection into default register
6. P - paste (put) yanked selection before cursor in blockwise mode

All done