Data Cleaning & Power BI Dashboards

@sareheshak

AVAILABLE TO START IMMEDIATELY. FREE SAMPLE PROVIDED.,,. I will build a repeatable model using Power Query and SQL to clean your multi-source data, delivering the Excel prototypes, final Power BI dashboards, and full documentation. 10+ years Advanced Excel experience, Certified VBA Programmer, MBA.

@ahmedsadek111124

Hello! I can help with merging and cleaning your CSV, Excel, SQL, and API data sources to create a single reliable source for your dashboards. I'll build robust cleansing routines to address missing data, format inconsistencies, and duplicates using Excel and SQL tools. Then, I'll develop interactive Excel prototypes followed by Power BI dashboards with filters and drill-downs for clear KPI visualization. Documentation of each step will be provided for easy future maintenance. Could you please share the core KPIs you want to track in the dashboards? Looking forward to your reply. Best regards,

@tauqeer0307

Hello, I have clearly understood your requirements that you need multiple data sources (CSV, Excel, SQL, and APIs) merged into a clean, centralized reporting model with interactive dashboards in both Excel and Power BI. With 5 years of experience in data cleaning, modeling, and dashboard development, I can build repeatable workflows to handle missing values, duplicate records, and inconsistent formats using Power Query, SQL, and structured transformation logic. I will first create a clean Excel-based prototype for stakeholder review, then develop an interactive Power BI dashboard with KPIs, filters, drill-downs, and intuitive visuals. All transformations and relationships will be documented clearly so the process remains maintainable after handover. You will receive cleaned datasets, the Excel dashboard prototype, Power BI (.pbix) file, and a concise handover guide. Best regards. Tauqeer Ahmad

@ShivaniGoyalsai

Hi, I can help merge, clean, and model your CSV/Excel, SQL, and API data into a reliable single source of truth with Excel and Power BI dashboards. I have strong experience in Power Query, SQL, API data connections, Excel dashboards, Power BI, DAX, and data-cleaning workflows. I’ll build repeatable transformation steps to handle missing values, inconsistent formats, duplicates, and refresh logic, then create an Excel prototype for quick review before developing the final interactive Power BI dashboard. The final solution will include clean datasets, KPI dashboards with filters/drill-downs, a fully structured .pbix file, and clear documentation so you can maintain the process confidently after handover. Ready to start immediately and deliver a clean, scalable reporting workflow. Thanks Shivani

@MZITSERVICES

Hi there, I am A.R.M. MASUD with a strong background in data science. I am pleased to present this proposal for data visualization and dashboard development services. I specialize in transforming raw data into meaningful, interactive visual representations that provide actionable insights. I leverage cutting-edge tools such as Power BI, Tableau, Looker Studio, and other visualization platforms to create custom dashboards and data visualizations tailored to your unique business needs. I aim to empower your organization with intuitive, user-friendly, and insightful data analytics solutions. I design and develop dynamic dashboards featuring interactive charts, graphs, and reports. I create tailored reports that reflect key performance indicators (KPIs), trends, and metrics based on business objectives. I integrate data from multiple sources, including Excel files and APIs. I build fully functional interactive dashboards with real-time or scheduled data updates and custom visualizations, charts, graphs, and KPIs tailored to your business requirements. https://www.freelancer.com/u/MZITSERVICES Thank you for considering your dashboard development project. I am confident that our expertise and commitment to excellence will add significant value to your business operations. Thanks A.R.M. MASUD

@Osama102

Hello, my name is Osama. I specialize in Microsoft Excel, Power BI, and VBA automation. For your project, I can design robust data‑cleaning routines to handle missing values, inconsistent formats, and duplicates across CSV/Excel exports, SQL tables, and API feeds. These routines will feed into a repeatable model that merges all sources into a single source of truth. I’ll first build interactive dashboards in Excel for quick stakeholder review, then develop polished Power BI dashboards with filters, drill‑downs, and intuitive charts to highlight the KPIs we define together. Every transformation step will be documented clearly so you can maintain and extend the process independently after handover. Before starting, I’d like to review a sample of your data feeds to confirm the structure and volume. Could you also share your formatting preferences for the dashboards (e.g., corporate colors, chart styles, or layout guidelines)? With those details, I can provide a precise turnaround estimate and begin immediately.

@AZTURK1

Hi there, I will merge CSV/Excel exports, SQL tables and API endpoints into a repeatable, documented ETL model and deliver Excel prototypes plus a Power BI dashboard; my background in SQL, Power BI and Excel fits this multi-source data-cleaning and dashboarding requirement. - Deliverable 1: data-cleaning routines (Power Query + SQL scripts) addressing missing values, inconsistent formats, and duplicate record removal; cleaned CSV/Excel and SQL-ready tables. - Deliverable 2: repeatable single source-of-truth model (staging, transformation, final schema) and interactive Excel prototype followed by a Power BI (.pbix) dashboard with filters, drill-downs and KPIs. - post-deploy validation: backup checkpoint and post-fix validation with sample checks and reconciliation scripts. Skills: ✅ CSV/Excel ✅ SQL (source DB) ✅ Power Query / ETL workflows ✅ Power BI / Excel dashboarding ✅ Data validation / post-deploy testing Certificates: ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I am available to start immediately; Do you want the ETL implemented using Power Query-only (Excel + Power BI) or with SQL-based transformations in the source database? Best regards,

@kaimenyijohn5

AM READY TO START ASAP: DATA CLEANING & DASHBOARD BUILD – CSV, SQL, API, EXCEL PROTOTYPE + POWER BI Hello, I am John K., an MSc Economist & Statistician with over fifteen years of experience as a full-time freelancer. I have successfully delivered 1,000+ projects on Freelancer.com, maintaining a 4.9-star rating. My expertise includes data cleaning, SQL, API integration, Excel dashboards, and Power BI. My understanding is: You have multiple data feeds (CSV/Excel, SQL database, API endpoints) that need merging, cleaning, and transforming into decision-ready dashboards. I will create robust cleaning routines, a repeatable data model, an interactive Excel prototype for stakeholder review, and a final Power BI dashboard with filters, drill-downs, and intuitive charts. Deliverables include cleaned data files, Excel prototype, .pbix file, and handover documentation. I will deliver: ✅ Cleaned, merged, and validated data from all sources. ✅ Interactive Excel dashboard (quick stakeholder review). ✅ Full Power BI dashboard with core KPIs, filters, and drill-downs. ✅ Step-by-step transformation documentation for maintenance. I am ready to begin. Let's connect via chat to receive your data sources and discuss KPIs. Respectfully, John K.

@JawadIT

Hi, I've been working on Data Analysis and Tools like Power BI, Tableau, QlikView and RapidMiner since last 16 years and can integrate cleaning APIs and customized routines to Data in Power BI to fulfill your purpose. I’d be glad to help you build a reliable, end-to-end reporting workflow that turns fragmented data sources into clean, decision-ready dashboards. I have experience working with multi-source data environments involving CSV/Excel exports, SQL databases, and API integrations. My approach focuses on creating a structured and repeatable pipeline so the reporting process remains scalable and easy to maintain long after delivery. Here’s how I would handle your project: • Build robust data-cleaning workflows to manage missing values, inconsistent schemas/formats, duplicate records, and validation checks. • Consolidate all cleaned sources into a centralized, repeatable “single source of truth” model. • Develop interactive Excel dashboard prototypes first for rapid stakeholder feedback and iteration. • Convert the finalized reporting structure into professional Power BI dashboards. I will also provide: • Fully cleaned and structured datasets • Excel dashboard files • Power BI (.pbix) dashboards • Clear transformation/process documentation • A concise handover guide for ongoing maintenance Looking forward to discussing the project further. Best regards, Jawad.

@smzaman01

As a Microsoft Excel Specialist with a keen eye for detail, I can guarantee that I will deliver robust and reliable data cleaning routines. Over the years, I have amassed extensive experience dealing with missing values, inconsistent formats, and duplicate records. My strong knowledge of Advanced Excel Functions, VBA macros, Pivot tables, and Power Query will be key in merging your disparate datasets into a single `source of truth`, ensuring our decision-making process is rooted in accurate insights. Building upon my proficiency in Excel Dashboards & Reporting, I am capable of crafting interactive and intuitive dashboards showcasing the core KPIs important to you. Not only will this include filters, drill-downs, and visually-enticing charts but also an initial prototype in Excel for quick stakeholder reviews before finalizing them on Power BI. Lastly, my commitment to proactive communication and fast turnaround coincides well with your project needs. Over the course of our engagement, you can expect clear documentation of every step I take so that maintaining the process once our work is complete will be seamless. While my skillset extends beyond just data management, the focus on `Data Analysis & Business Support` ensures that I can not only cleanse your data but draw valuable insights from them as well. Look forward to empowering you with clean data files, easy-to-comprehend dashboards and a comprehensive handover guide!

@AbdullahLasharii

Your data from CSV/Excel files, SQL tables, and APIs will be transformed into a single clean reporting system with interactive Excel and Power BI dashboards that are accurate, maintainable, and easy to review. I will use Power Query, SQL, DAX, and API workflows to automate cleaning, merging, and KPI reporting with full documentation. ➡️ My work process: ➤ 1. Data Review Audit all sources, structures, and KPI requirements before building the workflow. ➤ 2. Cleaning & Validation Use Power Query and SQL to remove duplicates, standardize formats, and handle missing or inconsistent data. ➤ 3. Unified Data Model Merge all cleaned datasets into a centralized reporting structure for reliable analysis. ➤ 4. Excel Dashboard Prototype Build interactive Excel dashboards with slicers, PivotTables, and drill-down reporting for stakeholder review. ➤ 5. Power BI Dashboard Create Power BI dashboards with DAX measures, filters, drill-throughs, and intuitive KPI visuals. ➤ 6. Documentation & Handover Provide clear documentation for transformations, refresh logic, and ongoing maintenance. ➡️ Why choose me: ✅ Rising Star ⭐ freelancer on the platform ✅ Expertise in Excel, Power BI, SQL, Power Query, and API integrations ✅ Similar projects completed on this platform; reviews available in my profile ✅ I build reusable automated workflows, not temporary fixes  Risk-Free Collaboration: Full refund if my work doesn’t meet your expectations Regards, Abdullah Lashari

@Vsion2

Greetings! I am ready to start the project immediately and provide high-quality work. I have 8 years of professional experience in data cleaning abd powerbi and I have completed 350+ similar projects. You can check an example of one of those projects in my portfolio here: https://www.freelancer.com/u/Vsion2 I'm interested in discussing your project, If you have any questions or special requirements, please don’t hesitate to message me. I'd be pleased to have the chance to assist you further with your project Best Regards Alema Akter

@k1ng440

Mixing CSV exports with live SQL tables usually creates sync issues down the line. I can script the cleaning process so you aren't manually fixing data every week. I've built pipelines handling large datasets for fintech and streaming platforms. The focus there was always reliability and automation, not just one-off fixes. For this budget, I can help set up the initial data transformation logic. Then you can connect Power BI to a clean source. Are these SQL tables on a local server or cloud hosted?

@sudhir0112

Hi, I have experience working on end-to-end business intelligence and data-analysis projects involving multi-source data integration, SQL querying, Excel reporting, Power Query transformations, and interactive Power BI dashboard development. I understand the importance of creating a reliable single source of truth from mixed datasets while ensuring the final reporting environment remains clean, scalable, and easy for stakeholders to explore. My approach will focus on building structured data-cleaning workflows to handle missing values, duplicate records, inconsistent formats, and source-level validation across CSV, Excel, SQL, and API-based datasets. Once the datasets are standardized and modeled, I will create interactive Excel prototypes for quick stakeholder review followed by professionally designed Power BI dashboards with KPIs, filters, drill-down functionality, and intuitive visual storytelling for decision-making. The final delivery will include cleaned and documented datasets, reusable transformation logic, the Excel reporting prototype, the Power BI (.pbix) dashboard file, and a concise handover guide explaining refresh workflows, transformations, and future maintenance steps. I’m available to start immediately and discuss the source systems, KPIs, and reporting expectations further.

@engruhulajom

Hello, Hope you are doing fine. I will clean and merge your CSV, SQL, and API data into one source, handle missing values and duplicates, then build interactive dashboards in Excel (for review) and Power BI with filters, drill‑downs, and clear KPIs. I will document all transformation steps and provide a short handover guide. I communicate proactively and work fast. Please start a chat to share your data sources and KPIs. Best regards, Md Ruhul Ajom

@fatema0013

As a passionate Data Scientist, Full-Stack Web Developer, and Researcher, I firmly believe my skill set aligns perfectly with your project's requirements. In addition to excelling in data analysis and visualization using tools like Pandas, NumPy, Matplotlib, and Power BI - I prioritize clean data that transforms into powerful insights prospecting core KPIs. My robust data-cleaning routines ensure consistent formats across different platforms and duplicate-free records. Moreover, being an experienced Full-Stack Developer (HTML, CSS, JavaScript, React, Node.js), I understand how the final product should be used. To start off, I will create an interactive Excel prototype for quick stakeholder reviews that display the dashboards undertaken - making any alterations as per your instructions before working on Power BI. Finally, I greatly value proactive communication and fast turnaround just as you do. Furthermore, I believe strongly in knowledge sharing - so, alongside the cleaned data files and the Power BI (.pbix) file,

@gazmirs

Hi, ⭐15+ Yrs Sr Developer here⭐ I can help build a clean, repeatable data pipeline that merges your CSV/Excel files, SQL tables, and API feeds into a reliable single source of truth. I have experience handling messy datasets with duplicate removal, missing-value handling, normalization, and automated transformation workflows using SQL, Python, Excel, and Power BI. I can first create lightweight Excel dashboard prototypes for quick stakeholder feedback, then convert them into polished Power BI dashboards with filters, drill-downs, KPI tracking, and clear visual hierarchy. I also focus heavily on documentation, so every transformation, mapping rule, and refresh process is easy to maintain after handoff. My goal is to deliver dashboards that are not only visually clear, but also trusted for real decision-making. If you think I am a good fit, feel free to ping me anytime. — GAZMIR

@mubashir021

I understand the importance of delivering clean, actionable data that can drive decisions. With my expertise in Excel, SQL, and Power BI, I will implement robust data-cleaning routines to address missing values, inconsistencies, and duplicates. My approach will ensure that we create a single source of truth from your diverse data feeds, making it easier for stakeholders to access the information they need. I will build interactive dashboards in Excel for initial reviews, followed by detailed visualizations in Power BI, incorporating essential features like filters and drill-downs to enhance user experience. Furthermore, I will provide thorough documentation of each transformation step, ensuring you can maintain and replicate the process seamlessly. Proactive communication is key; I will keep you updated throughout the project and address any questions promptly to ensure we stay on schedule. You can expect the final deliverables to include the cleaned data files, the Excel prototype, the Power BI file, and a concise handover guide. Let's transform your data into powerful insights.

@brunodellarossa

Hello, I'm very interested in your project. I'm a certified Data Analyst with extensive experience integrating diverse data sources (SQL, Excel, APIs) using Power Query to create clean and scalable data models. My approach involves first ensuring data integrity (cleaning duplicates and null values) and then building interactive dashboards in Power BI to facilitate decision-making. I can deliver the initial Excel prototype, the final .pbix file, and detailed documentation for each transformation step to ensure the process is fully maintainable for you. I've developed similar KPI and performance dashboard projects, guaranteeing fast delivery and constant communication. I look forward to hearing from you!