|I believe this should give you what your looking for.|
The only problem, is you will not have enough columns in one worksheet.
So you will have to spread it over a couple of sheets.
To start with, eliminate the distraction of three columns.
Combine columns A & B & C into one column D using the formula:
Drag down your 15350 rows.
Next, insert a row at the top of your sheet and insert the following:
A B C D E F ... VRL VRM
1) D2 D3 D15349 D15350
In cell D2 enter the formula: =INDIRECT(E$1)&$D3
Drag the formula Down your 15350 rows.
Drag the formula Across to column VRM
That should give you a matrix of all the numbers, in single cells.
To break them out of the single cell and put the numbers in their own columns, you will need to use the Text To Column function from the task bar.
But first, you need to break apart the matrix into several sheets, or use the empty rows at the bottom of you current worksheet, else you won't have enough columns for the Text to Columns to work.
See how that works out.