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Writing numbers in text file (csv, excel)

Posted on 2011-03-15
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Hello,

I'm writing some data into a text file as *.csv and one of the columns is credit card number. However, when it is opened in Excel its values is converted to scientific notation such as 4.54111E+15  (of course that is due to the format Excel assigns to cell containing this value) however, when I open it notepad or any ascii editor the value is normal.

How can I make it such that when Excel reads it still reads it as a normal number or string?

I tried:


sb.Append(String.Format("\"{0}\"", sCcNum.ToString() )

yet it still Excel shows it with scientific notation.

Thanks.
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Question by:akohan
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6 Comments
 
LVL 44

Accepted Solution

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AndyAinscow earned 500 total points
ID: 35139384
If you aren't doing anything with the number then you could try to preface it with an apostrophe ' symbol.  (I think that is the correct one to force excel to treat it is a string rather than a number for display purposes.)
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LVL 23

Expert Comment

by:wdosanjos
ID: 35143973
Try this:

sb.Append(String.Format("=\"{0}\"", sCcNum.ToString() )

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LVL 11

Expert Comment

by:Sudhakar Pulivarthi
ID: 35148079
Hi,
The best way for that was ="1234567890123". The = makes the cell a formula, and the quotation marks make the enclosed value an Excel string literal. This will display all the digits, even beyond Excel's numeric precision limit, but the cell (generally) won't be able to be used directly in numeric calculations.
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LVL 44

Expert Comment

by:AndyAinscow
ID: 35148207
Eventually got around to checking it - it is an apostrophe.  See attached pictures
0013.jpg
0014.jpg
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Author Comment

by:akohan
ID: 35148296

Thanks to all.
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Author Closing Comment

by:akohan
ID: 35148303
This helped.
Thank you
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