How to format a text file

Hello I'm generating a text file in tab delimited format of frequency vs intensity. I wish to format it and save it in another text file. I'm getting my data in this format in the text file...
1312500000.00    -6.69
1375000000.00    -6.25
1437500000.00    -5.94
1500000000.00    -5.66
1562500000.00    -5.89
1625000000.00    -6.29
1687500000.00    -6.45
1750000000.00    -6.28
1812500000.00    -5.59
Now I'm trying to format this data into different coloums...like after every 201,401,601 or 1601(a control which tells this to vi)...I should jump to new set of coloumns, like:
Frequency             Int.       Frequency             int.
1312500000.00    -6.69    1312500000.00     -7.71        ...                ...               ...             ...
1375000000.00    -6.25
    1375000000.00    -6.55        ...               ...                ...           ...
1437500000.00    -5.94
    1437500000.00    -7.94
1500000000.00    -5.66
    1500000000.00    -7.66
1562500000.00    -5.89
    1562500000.00    -4.89
1625000000.00    -6.29     625000000.00      -9.09
1687500000.00    -6.45
    1687500000.00    -6.40
1750000000.00    -6.28
    1750000000.00    -6.88
1812500000.00    -5.59
    1812500000.00    -5.89
1375000000.00    -6.25
    1375000000.00    -5.25
1437500000.00    -5.94     12500000.00        -5.59
...till 201 rows(If I input 201 in a control)
I'm facing some problems with editing can anyone help me around.
Attached my text file for reference
Looking for help,
Regards
Attachments:
Rohit.txt ‏2821 KB

I don't think you need any loops and there is certainly no need o convert to numbers and back!
(scanning and formatting operations are expensive!)
Read the file as a plain string, then convert it to a 1D array of strings, one line per array element.
Reshape to a 2D array of proper dimensions and transpose to fill columns first.
Use spreadsheet string to array (now with tab as delimiter) to generate the desired string.
Write the string to a new file.
Here's a simple draft (LabVIEW 8.0). Look ma, no loops!
Modify as needed.
Message Edited by altenbach on 06-15-2007 03:29 PM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
columnwrapper.png ‏10 KB
ColumnWrapper.vi ‏13 KB

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