Build Simple Program for Reading & Writing CSV files

I need a simple program that will do the following:

1 – User will input a CSV file and the program will read all the IP addresses in column A

2 – The program will then replace the 4th octet of each IP address with a randomly generated number between 1 and 255 (and make sure the randomly generated number is not the same as the original number in the 4th octet)

3 – Output a new CSV file with the new IP addresses in column A (4th octet replaced with random number between 1 and 255), and keep all the original information from columns B, C & D from the input file in the new output file.

The program will need to be able to handle CSV files with up to 1 million rows.

PLEASE SEE THE ATTACHED sample “input” and “output” files for further clarification…

Please include a brief description with your bid to describe how you’d develop the program (brief description at a high level). This lets me know you read and studied the project description thoroughly.

Thank you and looking forward to working together.


Evner: C++ Programmering, Programmering af database, Java, Software Arkitektur, Software Udvikling

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Om arbejdsgiveren:
( 74 bedømmelser ) Fort Worth, United States

Projekt ID: #15174264

Tildelt til:


Hello If you accept Python to be used for the solution, this shall be a really easy and (really) quick to do work. If input files are too big, a limitation will be to read thm in portions, that's all Relevant Skills Flere

$35 USD in 10 dage
(45 bedømmelser)

21 freelancers are bidding on average $74 for this job


HI Contact me for an efficient, perfect, well documented development of your project according to 100% accuracy and requirements, with dedicated support. Approach: If the input file format is consistent we can Flere

$100 USD på 1 dag
(350 bedømmelser)

I can create simple GUI program (Windows, Mac or Linux) that will allow user to select CSV file and after Start it will change last octet of each IP with random number not equal to the original value Relevant Skills a Flere

$60 USD på 1 dag
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$60 USD in 2 dage
(157 bedømmelser)

Hello, I reviewed the Sample input [url removed, login to view] you attached and read all the details. If you have a Windows PC I can create you a desktop application to produce the results you want. Please feel free to contact me if y Flere

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$72 USD in 10 dage
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- can do this for you - it will work fast - complete code in your hands before you pay Relevant Skills and Experience - java expert - text processing and optimisation Proposed Milestones $70 USD - complete project

$70 USD på 1 dag
(44 bedømmelser)

Hi, I would like to create a php script that will take csv file, replace 4th octate of first column with random number and generates new csv. Relevant Skills and Experience php Proposed Milestones $66 USD - after com Flere

$66 USD in 3 dage
(27 bedømmelser)

Feel fee to contact me [url removed, login to view] me message to discuss further more details .We provide the comments,images,videos,demos and live sessions in order to help the [url removed, login to view] payment only after the work [url removed, login to view] yo Flere

$100 USD in 10 dage
(23 bedømmelser)
$100 USD in 2 dage
(33 bedømmelser)

Hello, since you have data in CSV - this could be easily done with VBA for Excel. I would make a macro that would do what you request. Relevant Skills and Experience I have a lot of experience with similar scripts, I Flere

$60 USD in 3 dage
(9 bedømmelser)

-------------------------------Professional C++ Developer! Best Result in Time!------------------------------ Relevant Skills and Experience Dear sir. I read your project description very carefully. I've really rich Flere

$80 USD in 10 dage
(4 bedømmelser)

dear, sir, i saw your project description carefully. i can do it on time with high level. i am new freelancer,but i have many experience in this filed same as your pro. Relevant Skills and Experience My aim is not mon Flere

$50 USD in 3 dage
(6 bedømmelser)

Expert in Web Application Html5,css3,php,asp.net,mvc Relevant Skills and Experience Expert in .Net 1-4.6 c# , c++ , java Proposed Milestones $100 USD - 00 i can create this app in hr

$100 USD in 10 dage
(2 bedømmelser)

This can be developed in either Java or Python. The former would allow a traditional window with Browse button for user to select a folder or individual CSV file. Relevant Skills and Experience I have developed mul Flere

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***We have done similar work according to your requirement *** Please check the work below: Phonegap/ionic: [url removed, login to view] [url removed, login to view] Flere

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$72 USD in 10 dage
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Hi, I have read your project description. I can your project in time wonderful. Please discuss in chat. Relevant Skills and Experience C++ Programming, Database Programming, Java, Software Architecture, Software Devel Flere

$50 USD på 1 dag
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