Excel Converter - JSON with validation in C#
18 USD You need to implement a console application in C# that will accept an Excel file (.xlsx) as input, read data from it according to the specified structure, perform basic validation (presence of required fields, correct date and number formats), and save the result as a JSON file.
Input data:
Excel file with data (1 sheet)
Each row is a separate record (name, description, price, date, ID)
Requirements:
.NET 6 or .NET 7
The structure of the output JSON should match the template (example will be provided privately)
Error handling: if there are incorrect data — display a message in the console
Comments in the code
-
2 days18 USD
106 2 days18 USD
Good day!
Ready to fulfill your order. I will implement a console program in C# (.NET 6/7)
Reading an Excel file, validating data, and saving in JSON format.
Errors will be handled, output to the console + comments in the code.
Waiting for an example file.
-
2 days18 USD
304 2 days18 USD
Hello!
Ready to complete your task. I have over 5 years of development experience. The task matches my completed job responsibilities.
Waiting for the file for processing and the list of optional fields.
-
1 day18 USD
2378 16 2 1 1 day18 USD
Доброго дня, дуже зацікавлений у роботі з Вами. Маю досвід в схожих проектах більше 5 років. Пропоную обговорити деталі роботи в особистому чаті.
-
1 day18 USD
162 1 day18 USD
👋 Hello!
Ready to perform the task — create a console application in C# (.NET 6 or 7) that reads data from an Excel file, performs basic validation (required fields, date/number formats), handles errors, and generates JSON according to the specified template.
✅ I plan to use libraries:
– EPPlus for reading Excel
– System.Text.Json or Newtonsoft.Json for generating JSON
🔧 I will implement with comments in the code, convenient error handling, and checks.
… I am waiting for the JSON template and additional clarifications (whether to stop processing on errors, how to store date formats, etc.).
🕒 Ready to start immediately. Looking forward to collaboration!
-
1 day22 USD
11616 44 0 1 day22 USD
Hello, I have experience working with console programs in C#, especially with different types of files. I will do it quickly and without problems. Waiting for details in private.
I will be happy to help you!
-
2 days18 USD
517 54 0 2 days18 USD
Hello! I have extensive experience in C#, so I will easily implement a console program that reads Excel, performs validation, and exports to JSON according to the specified structure. Error handling and comments in the code will be included.
-
1 day18 USD
480 3 0 1 day18 USD
Good day, I have extensive experience in creating programs for C#. I will quickly complete the task according to the requirements!
-
2 days18 USD
340 2 days18 USD
Good day!
I am interested in your vacancy because it perfectly matches my experience and technical skills. I have experience developing in C# using .NET 6/7, as well as working with Excel files through libraries like EPPlus or ClosedXML.
I would be happy to provide a test implementation or undergo a technical interview. Thank you for the opportunity!
-
1 day18 USD
3020 73 4 2 1 day18 USD
Good day! I have very extensive experience, so I can do it right now!!! Contact me!!!!
-
1 day18 USD
3538 51 2 1 day18 USD
Good day. 👋
My name is Oleksandr, I am a .NET developer with 4 years of commercial experience.
I am ready to implement a console program in C# for processing an Excel file according to the specified structure: reading data, basic validation (required fields, date and number formats), saving in JSON format according to the provided template, with error handling and message output to the console.
I work with .NET 6 / .NET 7, follow clean code principles, and add comments for convenience.
Everything will be ready today.✅
Looking forward to cooperation!
-
1 day18 USD
405 1 day18 USD
Hello, I am developing .NET applications, interested in a more detailed technical specification
-
1 day18 USD
1916 29 1 1 1 day18 USD
Hello! Ready to help with your project. I have extensive experience in development and will be able to implement all necessary components according to your documentation. I guarantee quality execution within the agreed deadlines.
-
1 day18 USD
543 2 0 1 day18 USD
Good day.
If it suits you - I can suggest creating a program in Java.
I have been working with Java for over 10 years.
-
1 day18 USD
278 2 0 1 day18 USD
Good day, I can quickly and efficiently complete this task, I have 2 years of commercial experience with .Net 7. I often use JSON and databases in my work. I understand algorithms and data analysis.
-
1 day45 USD
1767 40 0 1 day45 USD
Hello! Ready to do it quickly, with comments in the code. I have plenty of experience.
-
1 day18 USD
2500 39 1 1 1 day18 USD
Good day!
Ready to make a program for converting excel to json today.
-
1 day45 USD
4826 162 1 1 1 day45 USD
Good day. I can do it right now, I would be happy to cooperate, please contact me!
Current freelance projects in the category C#
Graduation project of the 11th grade lyceum. Topic - inequalities.A program is needed in C#, to work closely with me as the work is monitored by curators. The work will need to be defended in about 4-6 months. Work in parts with me and explain the writing after each part! Work plan in private messages. I am ready to pay from 5000 to 10000 for… C# ∙ 5 hours 16 minutes back ∙ 8 proposals |
Comparative analysis of the effectiveness of custom software (v2.2-field) and reference software (Meshtastic v2.x)
22 USD
Comparative analysis of the effectiveness of custom software (v2.2-field) and reference software (Meshtastic v2.x) on the identical hardware platform (ESP32 + SX1268, 2W) based on the criteria of range, throughput, link stability, and power consumption. Conduct tests with… C & C++, C# ∙ 3 days 14 hours back ∙ 2 proposals |
Creation of a plugin for integration with the POS system Syrve, C#
Develop a plugin for the Syrve POS system (on-premise), which is installed on the establishment's server. The plugin must: (1) transmit data to our server in real-time — orders, table statuses, payments, receipts; (2) receive commands from Reservble — booking confirmations,… C#, Web Programming ∙ 6 days 11 hours back ∙ 14 proposals |
Kharkiv