How to Automate CSV file manipulation?

Posted on 2014-02-24
Last Modified: 2014-03-04
I have a customer who uploads files to their system using CSV files which they are send from certain suppliers. The system rejects them if they are in the wrong format and they now have a new supplier sending their own style of CSV output. What I need to find out is how I can automatically parse the CSV file and copy the correct columns from their CSV into   the right columns on the new CSV. The new CSV file they recieve has all the data needed but just in the wrong places.

I think a macro of some sort would do this in Excel but I know very little about them?

Any ideas.. this must be a fairly simple thing to do (I Hope)

Thanks in advance
Question by:plug1
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LVL 30

Assisted Solution

by:Mike Lazarus
Mike Lazarus earned 250 total points
ID: 39885003
LVL 30

Expert Comment

by:Mike Lazarus
ID: 39885052
Depending on the specific changes you need, there might be better options using VBScript or Powershell ...

You'll need to be careful if data includes fields for: currency, dates, phone numbers
LVL 14

Author Comment

ID: 39885057
Its really just moving columns around and deleting ones which arent used? The tutorial you posted seems to be what I need.. just need to try it now.
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LVL 46

Expert Comment

ID: 39885885

The usual approach to this is to 'map' the CSV columns into their destination columns/fields.

If this is going to happen for more than one source, then create a source (database, flat file, workbook, etc.) that you can easily edit and that a VBA routine can easily read.  You can do this specification with column names, if present, or with column numbers.  This way, you won't have to change your code.

Another useful tool is Powershell.  Do you know anything about Powershell?
LVL 65

Accepted Solution

RobSampson earned 250 total points
ID: 39893569
If you show us a sample before and after copy of the CSV, we could help you rearrange it with a script.

LVL 14

Author Comment

ID: 39894024
Rob, that's the best thing Ive ever heard :) ... I'll be back later!
LVL 65

Expert Comment

ID: 39894035
Lol.... I don't know about "ever", but samples would certainly help us help you.
LVL 14

Author Comment

ID: 39905632
This has been resolved by the company supplying the original CSV in the correct format so unfortunately I cant try the first answer properly or take you up on your offer Rob, I'll split the points with you 2 though. Thanks alot.
LVL 14

Author Closing Comment

ID: 39905635
Cheers people.

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