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I have several Excel/CSV files that combine text fields, numbers and the occasional code column. Before I can feed them into my reporting workflow they need a thorough tidy-up. Here’s what I need from you: • Identify and remove every duplicate record across the full set of files. • Spot and correct obvious data entry errors—misspelled text labels, misplaced decimal points, transposed characters, faulty dates, and similar issues. Missing-value treatment is not required; I already have a routine for that, so you can leave blanks untouched. You are free to work in Excel, Google Sheets, Python (pandas), R, or any other tool you trust, as long as the final deliverable is returned to me as clean CSV/Excel plus a short log outlining what you changed and how you caught it. I’ll review by running my validation script against the cleaned files; zero duplicates and consistent field formats will be the acceptance criteria. Feel free to ask questions up front—the smoother we communicate, the faster we finish.
Project ID: 40543390
22 proposals
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Active 7 days ago
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22 freelancers are bidding on average ₹16,686 INR for this job

As a five-star rated freelancer, with extensive experience in data analysis and cleaning, I am confident that I have the skills and expertise needed to take on your project. My proficiency in Excel is not limited to simple data entry; I have a deep understanding of functions, formulas, formatting, and pivot tables that can help streamline your numbers. Using this knowledge, I can easily identify and remove even the most discreet duplicate records across all your files. Moreover, my technological prowess is not just limited to Excel but extends to Google Sheets, Python (pandas), R, and other tools as well. So getting your final deliverables back in the format you desire will be a breeze for me. Additionally, my meticulous approach will ensure that every single data entry error including misspellings, misplaced decimal points or even faulty dates are spotted and corrected effectively. Most importantly, clear communication translates to a successful partnership which is why I emphasize the aspect of mutual understanding right from the beginning. With my 24/7 availability and strong commitment to meeting tight deadlines with precision, I guarantee quality work without sacrificing punctuality. Choose me for a seamless data cleaning experience that meets all your project requirements.
₹15,000 INR in 1 day
5.9
5.9

Hi I am experienced data analyst of all types of raw data.I will provide my previous project output in the chat box.I have expertise in python for all types of data analysis.
₹15,000 INR in 7 days
4.7
4.7

@SahyadriTech #SahyadriTech Completed Projects: 1. Hotel Booking Management & Tracking System (Excel + VBA Script) 2. Appsheet: ERP system for textile business 3. MNGL Gas Incident Tracker & Dashboard (Google Sheets + Google Data Studio) 4. Daily Expenses Tracker (Google Sheets) 5. Option Scalping Strategy Automation (Excel VBA) 6. Nifty50 Live Option Chain Dashboard (Google Sheets) 7. Binary Trading Sheet (Google Sheets) 8. Customer Data Cleaning & Sorting Tool (Excel VBA & Python) 9. Historical Stock Closing Price Analysis for 2,600 Stocks (Excel & Python) 10. Power Bi dashboard for F1 Car racing insights 11. GOLD Loan tracking in Google sheet and Google Data studio 12. Local Taxi Tracking System (Google Sheets + Google Data Studio) 13. Appsheet Milk Drivers wages and attendance system (Appsheet + Google sheet ) Key Highlights: 1. Pay only if satisfied with the work 2. Expert in Power BI, Excel, VBA Macros, Google Sheets, Google Apps Script, and Python 3. Experience in 3 American MNCs 4. Skilled in Data Analytics, Automation, and Visualization 5. Proficient in Statistical Analysis 6. Offer Long-Term Support for all projects 7. Quick Delivery with multiple revisions I can deliver any project related to Data Analytics, Automation, and Reporting with precision and reliability.
₹15,000 INR in 7 days
2.8
2.8

Hi - I clean exactly this kind of mixed text, number and code data regularly, so this is a straight fit. My plan - load all your Excel and CSV files, dedupe records across the entire set and not just within each file using a stable key, so true duplicates go while any near-duplicate I am unsure about is flagged for your call rather than deleted blind. Then I fix the obvious entry errors - misspelled labels, misplaced decimal points, transposed characters and faulty dates - with every change captured in a change-log column so you can see and reverse anything. I will leave blanks untouched as you asked, since you already handle missing values. I work in Python pandas for accuracy and repeatability, and I return the cleaned files in the same structure you gave me plus a short summary of what was removed and corrected. To start cleanly I will run one of your files first as a sample, so you can sign off on the dedupe key and the error rules before I process the whole set. Two quick questions - roughly how many files and total rows, and do you want exact-match dedupe only or also fuzzy near-duplicate detection. I can start today. Thanks - Ricardo
₹12,500 INR in 3 days
2.6
2.6

Hey! Data cleanup across mixed CSV/Excel files with a clear change log — right in my lane. What I'd deliver: - Duplicate detection and removal across all files combined, not just within each file individually - Data entry corrections — misspellings, decimal misplacements, transposed characters, malformeddates, inconsistent label formats - Blanks left completely untouched as requested - Clean output returned as CSV or Excel, your choice - Change log detailing every correction made, how it was flagged, and which row/column it came from I'd work in Python (pandas) for this — fast, auditable, and easy to re-run if you add more files later. To get started smoothly: how many files roughly, and is there a data dictionary or list of valid values for the code columns? That'll help me catch label errors more precisely rather than guessing intent.
₹15,000 INR in 4 days
0.8
0.8

Hello, I am interested in assisting you with cleaning and standardizing your Excel/CSV datasets. I have hands-on experience using Python (Pandas), SQL, Excel, and Power BI to clean, transform, and analyze large datasets while ensuring data quality and consistency. For this project, I can: * Identify and remove duplicate records across multiple files. * Correct common data entry issues such as inconsistent text labels, date formats, decimal errors, and other formatting problems. * Standardize data while preserving the integrity of the original records. * Deliver clean CSV/Excel files along with a clear change log describing the modifications made and the methods used. I focus on writing clean, reproducible data-cleaning workflows so the results are accurate and easy to validate. I understand that your acceptance criteria include zero duplicates and consistent field formats, and I will ensure the final deliverables meet those requirements. Before hiring, I would be happy to join a technical discussion or interview to demonstrate my approach, answer your questions, and confirm that I am the right fit for the project. I look forward to the opportunity to work with you. Best regards, Gowri K
₹15,000 INR in 4 days
0.0
0.0

Hi, I’m Armin Nikdel. I can clean the Excel/CSV set for INR 18000 in about a week. I’d use Python/pandas because it gives a repeatable audit trail across multiple files: load the full set, detect duplicate records across the combined data, normalize text labels/dates/numeric formats, and leave blanks untouched. Deliverables would be clean CSV/Excel files plus a short change log showing removed duplicates, corrected obvious entry errors, and the checks used for zero duplicates and consistent field formats. I’ll keep backups of the originals and log only the minimum data needed for review. Are there any code/ID columns where leading zeros or exact casing must be preserved?
₹18,000 INR in 8 days
0.0
0.0

Hello, I can accurately review, clean, and validate your Excel/CSV files by correcting data entry errors, fixing formatting issues, and ensuring consistent, error-free records. I’m detail-oriented and ready to start immediately.
₹15,000 INR in 7 days
0.0
0.0

Hi, I can help clean and organize your Excel/CSV files with a strong focus on accuracy and consistency. For this project I will: • Remove duplicate records across all files. • Correct obvious data entry errors such as misspellings, incorrect dates, misplaced decimals, and formatting inconsistencies. • Keep missing values untouched as requested. • Deliver a clean Excel/CSV file together with a short summary of the changes made and the validation steps performed. I work carefully in Excel and Google Sheets and always double-check the final output to ensure consistent formatting and accurate data. I am available to start immediately and would be happy to discuss the details of your files. Looking forward to hearing from you. Best regards, Dharma Yanti
₹25,000 INR in 7 days
0.0
0.0

This is exactly the kind of project I enjoy working on. I understand the need for a clean, professional, and error-free data cleaning process for your mixed spreadsheet files. While I am new to Freelancer, I have tons of experience and have successfully completed similar projects off-site. I specialize in Excel, Google Sheets, Python (pandas), and R for data cleaning and analysis. If it sounds like a good fit, I'd be happy to discuss the details. Regards, Warrick Van Eeden
₹16,900 INR in 7 days
0.0
0.0

I have experience in editing and formatting PDFs, organizing and managing data accurately, and using MS Excel for data entry, cleaning, formulas, and reporting.I ensure high accuracy, attention to detail, and timely delivery of work
₹25,000 INR in 7 days
0.0
0.0

Hello, I am excited to apply for your data cleaning project involving Excel and CSV files. I have strong experience in data processing, data quality assurance, and handling structured datasets using Excel, Python, and R. I understand that your key requirement is to produce a clean, duplicate-free dataset with consistent formatting that will pass your validation script without errors. I will carefully identify and remove all duplicate records across the full dataset using reliable matching techniques, ensuring no partial or hidden duplicates remain. I will also correct obvious data entry issues such as misspelled labels, misplaced decimal points, transposed characters, inconsistent date formats, and structural inconsistencies across fields, while preserving your rule of leaving missing values unchanged. Thank you!
₹20,000 INR in 5 days
0.0
0.0

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