
Closed
Posted
I have a collection of Excel sheets filled only with numerical data, and they need to be cleaned so the figures are reliable for downstream reporting. Every value is already in place—there are no text fields—so the task focuses on catching and fixing issues such as inconsistent formats, hidden errors, duplicate rows, and any out-of-range or missing numbers. You are free to use Excel’s built-in tools, Power Query, or a lightweight script in Python/R if that speeds things up, as long as the end result remains in the same workbook structure I’ll provide. Deliverables • The original workbooks returned with all numerical data cleaned and validated • A concise change log (just a tab or a separate file) summarising the corrections you applied and any assumptions you had to make Once the files come back clean, I will run an automated audit, so accuracy is essential. Let me know your estimated turnaround time and any clarifying questions you need answered before you begin.
Project ID: 40711199
29 proposals
Remote project
Active 2 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
29 freelancers are bidding on average ₹956 INR/hour for this job

Hello there, I understand that you need to clean a collection of Excel sheets filled with numerical data to ensure accuracy for downstream reporting. I would approach this task by using Excel's built-in tools and potentially incorporating a lightweight Python script if needed. My experience in data cleaning and validation will ensure that all issues such as inconsistent formats, hidden errors, and duplicate rows are addressed effectively. I will provide the original workbooks with cleaned data and a concise change log detailing the corrections made. Could you please clarify if specific validation rules need to be followed during the cleaning process? Thanks, Manisha
₹1,000 INR in 40 days
4.3
4.3

Hi, I can clean and validate your numerical Excel datasets while preserving the original workbook structure and ensuring the files pass downstream audit checks reliably. I can handle: • Inconsistent numeric formats • Hidden Excel errors • Duplicate row detection/removal • Missing numerical values • Out-of-range values • Decimal/percentage consistency • Formula-result validation where applicable • Statistical checks for unusual values • Final workbook integrity review I can work directly in Excel, Power Query, or use Python/Pandas for larger datasets, while keeping the final output in the same workbook format and layout you provide. My process is accuracy-first: I’ll profile the data, identify issues, apply controlled corrections, and then perform a second validation pass before delivery. Any value that cannot be safely corrected will be flagged rather than guessed. Deliverables: • Cleaned and validated Excel workbooks • Original structure preserved • Concise change log • Notes on assumptions or flagged values Estimated turnaround: 1–3 days depending on file size and validation rules. Best regards Ankit
₹1,000 INR in 40 days
3.9
3.9

With over a decade of experience crafting robust software solutions and leading my team at Walking Dreamz Technologies, I am adept at addressing complex data-related challenges. In your project, I propose to leverage the power of Python to clean and validate your numerical Excel data more efficiently and precisely than possible with traditional methods. Utilizing Python will allow me to ensure each value is consistent, errors are eradicated, duplicates are eliminated, and all numbers are within expected ranges. Precise documentation and transparency are an unshakable part of my process. Therefore, I will deliver the original workbooks with thoroughtly-cleaned, validated, numerical figures whilst also providing you with a separate concise change log detailing every modification made and the assumptions upon which they were based. To conclude, as a seasoned freelancer with an unwavering focus on quality and predictability in project delivery, I am confident that my skillset coupled with my attention to detail will enable me to deliver trustworthy numerical data back to you swiftly. Let's not just make your data reliable for downstream reporting but also usher in an easier tomorrow - easy expandability and scalability; choose me for this task; let's chat!
₹1,000 INR in 40 days
3.5
3.5

Hi, I have hands-on experience with Excel data cleaning, validation, spreadsheet review, and accuracy-focused checking. I can clean and validate your numerical data while preserving the existing workbook structure. I’ll check for inconsistent number formats, duplicate rows, missing values, hidden errors, and out-of-range values based on your expected limits or data rules. I’ll carefully review the cleaned workbooks before delivery so they are ready for your automated audit, and I’ll include a concise change log documenting the corrections made and any assumptions or values that required attention. Estimated turnaround: 2–3 days, depending on the number and size of the workbooks. Best, Noor
₹850 INR in 15 days
2.4
2.4

Hi, numeric workbooks cleaned and returned in the exact layout you send, with a change log beside them. Plan: pandas loads each sheet, then the checks run in a fixed order so one fix doesn't undo another. Formats first, numbers stored as text and stray separators, then duplicate rows, then range and outlier checks against bounds you confirm, missing cells last because those need a decision rather than a rule. Every change appends a log row with sheet, cell, old value and new value. Do you want blanks filled or left empty and flagged? I've done the same pass on survey exports before a client audit. Happy to take one workbook first so you can check the log. Regards, Zohaib
₹1,250 INR in 40 days
1.6
1.6

I specialize in data integrity and automation using Python. I can streamline your Excel cleaning process by using Python (Pandas/OpenPyXL) to programmatically detect inconsistencies, duplicate rows, and out-of-range anomalies that manual entry might miss. This approach ensures high accuracy for your automated audit, as the logic remains consistent across all workbooks. My approach: - Use Python scripts to standardize formats and identify missing/erroneous values. - Verify data ranges to ensure numerical reliability. - Provide a clean, structured change log detailing all transformations and corrections applied. Since this task requires precision for downstream reporting, I will perform a sample pass on the first file to ensure my logic aligns perfectly with your requirements before processing the entire batch. I am available to start immediately and can provide a fast turnaround while maintaining strict data accuracy. What is the total volume of files or rows I should expect?
₹800 INR in 40 days
0.0
0.0

The key here is not just removing obvious errors, but making sure every numerical value survives your automated audit afterward. I can clean the workbooks while preserving the exact existing structure, checking number formats, duplicates, blanks, hidden formula/error values, invalid ranges, and numerical inconsistencies. I can use Excel/Power Query or Python where useful, then run validation checks before returning the files. I’ll also add a concise change log showing corrections and any assumptions made. For a typical workbook set, I can usually complete the first pass within 24 hours after receiving the files. Approximately how many workbooks and total rows are involved?
₹1,000 INR in 40 days
0.0
0.0

I can deliver 'Excel Numerical Data Cleaning -- 2' end to end — clean architecture, tests, and deployment. I'll start with a short plan, share progress daily, and hand over production-ready code. Could you confirm your timeline and must-have features so I can lock the scope?
₹902.50 INR in 7 days
0.0
0.0

Hello, I’m a Python and Data Analytics professional with experience in Excel, data cleaning, data validation and data quality. I can clean and standardize your numerical Excel data while preserving the existing workbook structure. I will check and correct: * Numbers stored as text * Mixed decimal and thousand separators * Leading/trailing spaces * Hidden or non-printing characters * Excel “Number Stored as Text” warnings * Inconsistent numeric formatting After cleaning, I will validate the workbook to ensure the values are recognized as true numbers, calculations work correctly, and the file opens without conversion errors or warnings. I can use Excel, Python/Pandas or Power Query depending on the workbook structure, while keeping the final file lightweight and easy to maintain. I’m also happy to clean a small sample first so you can verify the result before assigning the full file. Rate: ₹800/hour Estimated turnaround: 2 days, depending on the workbook size. Best regards, Filipi
₹800 INR in 40 days
0.0
0.0

Hi, I'll return the original workbooks with the numerical data cleaned, validated, and kept in the same workbook structure for your downstream reporting. I'll check inconsistent number formats, hidden errors, duplicate rows, out-of-range values, missing numbers, stray characters, and other anomalies in the numeric fields. I can use Excel, Power Query, or a lightweight validation script where it improves coverage, while keeping the final workbook practical to audit. For quality control, I'll reconcile row counts before and after cleaning, preserve formulas and verify that their references still calculate correctly, compare corrected values against the source, and record every change or assumption in a concise change-log tab or separate file. I'll also spot-check totals so the workbook is ready for your automated audit. I have a before-and-after cleanup sample showing standardized values, duplicate handling, and row-count reconciliation. After award, I can start with a small funded workbook so you can confirm the rules before I process the full set. How many workbooks and sheets are included, and will you provide the expected ranges or validation rules for out-of-range numbers?
₹750 INR in 40 days
0.0
0.0

Since every value here is already numerical with no text fields, the real risk is subtle stuff a quick manual pass tends to miss , a comma used as a decimal separator in one row, a duplicate that looks slightly different from its twin, a value that's technically valid but sits outside a realistic range. That's where I'd focus first. Approach: script the cleaning in Python (pandas/openpyxl) rather than doing it by hand, so every fix is consistent and repeatable , format normalization, duplicate detection, and out-of-range/missing-value flags — then write the results back into your existing workbook structure exactly as provided. You'll also get a short change-log tab documenting every correction and any assumption I had to make, so it holds up cleanly against your automated audit afterward. I work with Python/pandas for data-cleaning and validation regularly — most recently building a data-integrity pipeline during my internship at Trident Group, standardizing machine-reading data across 600+ industrial units where downstream reporting depended on the numbers being right. Happy to start right away , could you let me know roughly how many sheets/rows are involved so I can commit to a precise turnaround?
₹800 INR in 12 days
0.0
0.0

?IF YOU'RE NOT HAPPY, YOU DON'T PAY.? Recently, I helped a client clean their data in Excel, ensuring all figures were accurate and ready for reporting. I can help you achieve the same level of reliability in your numerical data. I understand you need a clean, professional, and user-friendly solution that addresses issues like inconsistent formats, hidden errors, and duplicates. I have extensive experience with Excel’s built-in tools and can leverage Power Query or lightweight scripts to ensure efficiency. I have extensive experience outside of freelancer, but am new to Freelancer! I look forward to discussing your project further. Regards, MORNE.
₹750 INR in 14 days
0.0
0.0

My name is Kishan, and I'm not only a seasoned Full Stack Developer but also a skilled data manager with extensive knowledge of Excel and Python. I have successfully dealt with massive numerical data sets in the past, whether it be cleaning, validating, or transforming them for downstream usage. I find out hidden errors like anomalies, duplicated rows, missing numbers, or any inconsistent format through my love for detail and proficient same workbook structural organization. Being well-versed with Excel's built-in functions, Power Query and scripting in Python/R permits me to choose the best methodology for specific situations to improve turnaround time without compromising on accuracy. My work philosophy is founded on delivering results that are reliable for long-term use ensuring your downstream analysis reports will be highly dependable. On top of my technical expertise, my experience as a Full Stack Developer has honed my ability to understand clients' needs clearly and suggest practical improvements whenever necessary. I firmly believe in consistent communication and offering support even after the project completion. Let's build a rewarding relationship through this project and many more to come via quality work and reliable achievement! Let's discuss further how I can turn your idea into a meticulously validated data set ready for auditting.
₹750 INR in 40 days
0.0
0.0

Not happy with the final result? Don’t pay. Your satisfaction comes first. I recently helped a client turn their idea into a clean, professional, and user-friendly solution, and I’d love to do the same for you. With extensive experience in Excel data cleaning, I ensure that all numerical data is accurate and reliable for your reporting needs. I will utilize Excel's built-in tools and, if necessary, lightweight scripts in Python or R to expedite the process, while maintaining the workbook structure you provide. I will deliver the cleaned workbooks with a detailed change log, outlining the corrections made and any assumptions. My goal is to ensure your data integrity, as I understand the importance of accuracy in your automated audit. I can complete this project within three days. Send me a message and let’s discuss your project. Regards, Joey
₹750 INR in 7 days
0.0
0.0

Hello, I can clean and validate your numerical Excel workbooks while preserving the existing workbook structure, then return the cleaned files with a concise, auditable change log. For an initial batch capped at three hours, I will: • Profile each sheet for blanks, duplicate rows, hidden errors, inconsistent numeric formats, and invalid or out-of-range values • Use Excel, Power Query, or Python as appropriate • Avoid silently changing legitimate outliers; questionable values will be flagged against your stated rules • Run before-and-after validation checks • Record the sheet/cell or range, issue found, action taken, and any assumption in the change log Please send a sample plus the number of workbooks, sheets, approximate rows, and any valid ranges or business rules. If the full batch cannot be completed within the three-hour cap, I will stop after profiling and confirm the remaining scope before any additional work. I can start immediately and deliver the initial results within 24 hours. Best regards, John
₹900 INR in 3 days
0.0
0.0

Hi, numeric only workbooks back in the exact structure you send, with a log of every correction. How we'd build it: a pandas pass that profiles each sheet first, so the real spread per column is known before anything is called out of range. Then duplicates by key, formats normalised, missing cells interpolated or left blank with a note rather than silently guessed. Writes go back through openpyxl into your own file, so layout and formulas survive. What counts as out of range for you, fixed bounds or a rule per column? We've run the same profile then correct pass on messy financial exports. Happy to take one workbook first so you can judge the log. Regards, Digitalizers
₹750 INR in 40 days
0.0
0.0

Hi, With over seven years of experience working as a statistician and data analyst, I regularly use Python and Pandas alongside Excel to handle statistical data treatment, checking for duplicates, missing values, outliers, and overall data consistency. I can systematically clean your numerical workbooks to ensure they pass your automated audit without issues. You will receive the fully validated files in your original structure, accompanied by a concise change log summarizing all corrections and assumptions made. I am available to start right away. Sincerely, Leandro Viana
₹750 INR in 20 days
0.0
0.0

Hi, I've decided to offer given that I've worked with sheets, related tools and data cleaning, my experience with Excel and Query is strong and reliable, for me working with you would represent a good opportunity to put my skills on practice.
₹900 INR in 20 days
0.0
0.0

I can check your numerical Excel sheets while preserving their existing workbook structure, and return a clear log of each correction. I would use a lightweight Python workflow to identify duplicates, inconsistent number formats, missing values and out-of-range figures, then reconcile the results against your audit rules. Missing or unusual figures would be flagged for your decision rather than replaced with guessed values. My rate is ₹1,250/hour. I suggest starting with one workbook as a paid pilot, initially capped at two hours per week. After reviewing a redacted sample and row count, I will confirm what fits within that cap and target the first checked version within 48 hours of agreed scope and a funded pilot. I use AI-assisted development with validation; my profile includes a clearly labelled synthetic spreadsheet sample. Could you share the number of workbooks and rows, the allowed ranges for each column, and the duplicate/missing-value rules your automated audit expects?
₹1,250 INR in 2 days
0.0
0.0

The most important part of any project is understanding what the client actually needs before starting the work. I take that approach with every project, focusing on clear communication, reliable delivery, and solutions that support the bigger business objective. I have extensive experience in data cleaning and analysis, particularly with Excel. I will ensure that your numerical data is thoroughly cleaned, addressing inconsistent formats, hidden errors, duplicate rows, and any out-of-range or missing numbers. Using Excel’s built-in tools and my expertise, I can efficiently deliver a clean and validated workbook while maintaining the original structure. With 75+ 5-star reviews on similar projects and a ranking in the top 1% among 75 million users, I am committed to quality and client satisfaction. I estimate a turnaround time of 3-5 days depending on the complexity of the data. I would be glad to discuss any clarifying questions you might have. Regards, Myrond6
₹750 INR in 7 days
0.0
0.0

Kolkata, India
Member since Jul 25, 2026
₹750-1250 INR / hour
₹12500-37500 INR
₹12500-37500 INR
$25-50 USD / hour
₹750-1250 INR / hour
₹600-1500 INR
$250-750 USD
₹400-750 INR / hour
$300-400 USD
₹1500-12500 INR
₹600-1500 INR
₹200-1000 INR / hour
$2-8 AUD / hour
₹600-1500 INR
₹12500-37500 INR
₹600-1500 INR
₹100-400 INR / hour
₹12500-37500 INR
€8-30 EUR
₹750-1250 INR / hour
$15-25 USD / hour