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My master workbook feeds several pivot tables and charts that I rely on every week. The underlying sheets now need two things at once: fresh rows added from new sources and a careful pass to correct some historic inconsistencies. Once the data itself is clean, I want the existing model tightened up so it runs faster and is easier to maintain. Here is what I need you to do: • Bring in the latest raw files, merge them with the old tables, and fix any duplicate or mis-typed records you spot along the way. • Rework the current relationships so they follow best-practice star schema principles and eliminate redundant joins. • Tune performance—smaller file size, quicker refresh, and efficient calculated columns or DAX measures where they make sense. • Simplify the overall structure so future updates are a drag-and-drop task instead of a rebuild. • Re-point my existing pivots and charts to the optimized model and verify every metric still matches the original business logic. • Walk me through the changes live over a desktop-sharing tool so I can replicate the process next time. The workbook sits in my local desktop and need to walk me through the changes using Power Query, Power Pivot, VBA, or other native Excel techniques as you see fit. Due to data privacy, I'm NOT ABLE TO SHARE THE FILE and need to be on a call to walk me through the tasks. Let me know how quickly you can turn the first revision around and what you need from me to get started.
Projekt-ID: 40223822
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$0 USD på 10 dage
6,7
6,7

$0 USD på 40 dage
3,9
3,9
66 freelancere byder i gennemsnit $16 USD/time på dette job

As an experienced Full stack developer for over 7 years, I bring to the table a wealth of expertise in fields such as Data Analysis and Excel. I've worked with prestigious companies like Metlife GOSC, DXC technologies, and Elite Services, throughout which I have proven my ability to find efficient, optimized solutions for complex data needs. My skills extend to not only using Excel extensively but also with Power Query, Power Pivot, VBA, and other native Excel techniques. These skills will be essential in tackling your project's requirements to integrate fresh data effectively, optimize the model structure for improved performance, and reconfigure relationships following best practices. My approach to projects is centered on employer satisfaction. This means my bid is fair and I guarantee you'll pay only if you're satisfied with my work – ensuring you get your money's worth! Furthermore, and most importantly for this project's requirement of walking you through the changes live over a desktop-sharing tool, I can work during EST TIME - 8 AM TO 12 PM so we can collaborate smoothly on progress. I look forward to working with you and showing firsthand the value I bring with my experience in transforming complex data models into user-friendly and efficient solutions that stand the test of time.
$15 USD på 40 dage
8,5
8,5

With over 16 years of experience in data analysis and a specialization in Excel, I believe I am the perfect fit for your project. My expertise in advanced spreadsheet design, macros, VBA automation, and more will ensure that I can easily handle all the tasks you need. Not only I'm familiar with importing and merging data from multiple sources while addressing inconsistencies like duplicates or typo errors, but also proficient in optimizing the model to improve performance and file size. As a detail-oriented analyst, I value the accuracy and precision of your data model and understand how a poorly optimized structure can hinder the quality of information needed for precise decision-making. Lastly, your condition of NOT SHARING THE FILE won’t be an obstacle. Using Power Query, Power Pivot, VBA, or any native technique necessary for this task, I can walk you through every change we make via screen sharing sessions. Let's get started on elevating your data management system, improving efficiency and ensuring future-proof operations.
$10 USD på 40 dage
6,7
6,7

with deep expertise in Power Query, Power Pivot, and performance optimization. I can guide you live through merging new data, cleaning inconsistencies, restructuring your model into a proper star schema, optimizing performance, and reconnecting all pivots and charts without breaking business logic.
$10 USD på 40 dage
6,4
6,4

I am an expert in Excel, Excel formulas, and all excel functions, macros, lookup, pivot tables and charts. I read your project description and I am sure that I can handle your project. 2. Have done many projects in Excel, created many dashboards, and Business intelligence tool for forex markets. Experienced MBA Finance as well. 3. Your project will be delivered on time with high standard 4. Assistance will be provided with number of clarifications until client satisfaction
$12 USD på 40 dage
6,6
6,6

Hi Sharif, Thank you for considering my proposal. With over 8 years of real-world experience and freelance work in Excel, I am confident in my ability to assist you with optimizing your Excel data and model. I have carefully reviewed your project requirements and would love to discuss it further with you in a chat. I believe I can bring in the latest raw files, merge them with existing tables, correct any inconsistencies, rework relationships to follow best practices, and optimize performance for your workbook. I am proficient in using Power Query, Power Pivot, VBA, and other Excel techniques to achieve the desired results. I would appreciate the opportunity to connect with you in chat to discuss your project in more detail. Regards.
$8 USD på 40 dage
6,3
6,3

Hello, I have over 7 years of experience working with Excel and have carefully reviewed your project requirements. To optimize your Excel data and model, I propose the following approach: 1. Import and merge new raw files with existing data, identifying and correcting any errors or duplicates. 2. Restructure relationships to adhere to star schema principles for improved efficiency. 3. Enhance performance by reducing file size, improving refresh speed, and implementing efficient calculations. 4. Simplify the structure for easy future updates. 5. Reconfigure existing pivots and charts to align with the optimized model and ensure accuracy. 6. Provide live guidance on the changes made for easy replication. I am proficient in using Power Query, Power Pivot, VBA, and other Excel techniques to achieve these optimizations. I would like to discuss this project further with you. Please connect with me in the chat to explore the details. You can visit my profile at https://www.freelancer.com/u/HiraMahmood4072 Thank you.
$8 USD på 40 dage
6,2
6,2

Hello, I’m an advanced Excel specialist with strong expertise in Power Query, Power Pivot, and data modeling, and I can guide you live to clean, restructure, and optimize your workbook without direct file sharing. I’ll help merge new data, fix inconsistencies, apply star schema best practices, improve performance, and streamline updates into a simple drag-and-drop process—while ensuring all pivots and metrics remain accurate. I’m ready to start immediately and can schedule the first working session right away. Regards, Zafar
$8 USD på 40 dage
6,1
6,1

Hi, I will guide you live to merge new data, clean inconsistencies, rebuild the model using star schema best practices, optimize performance, and reconnect your pivots and charts while keeping all metrics intact. I can start immediately and deliver the first revision in 1–2 sessions. Just share your availability and a quick overview of the data sources. Best Regards, Virendra
$12 USD på 40 dage
6,0
6,0

With my extensive expertise in Excel, fueled by years of providing professional accounting services, I'm confident that I can be your go-to solution for optimizing your Excel data and model. My proficiency in Excel spans from Power Query to Power Pivot and includes VBA, ensuring that I am well-equipped to navigate your unique project demands. Specifically, in terms of your first requirement, I am adept at merging various data files while identifying and rectifying duplicate or mis-typed records efficiently - a task crucial for the cleanliness and integrity of your data. As an ACCA qualified professional, I understand the significance of adhering to best-practice principles when it comes to structuring data and eliminating redundant joins. My skill set is perfectly aligned with your request to simplify the structure for easy future updates while maintaining peak performance, which includes a smaller file size and quicker refresh rate. Additionally, given that you need to replicate this process in the future, my clear communication style will ensure that you feel equipped and confident moving forward.
$12 USD på 40 dage
4,9
4,9

Hello, I understand that you are seeking an experienced Excel specialist to optimize your master workbook by merging new raw data, correcting historic inconsistencies, and improving the data model for performance and maintainability. My approach will include merging and cleaning datasets, reworking relationships according to star schema principles, tuning calculated columns and DAX measures for faster refresh, and simplifying the structure so future updates are seamless. I will also re-point your existing pivots and charts to the optimized model and verify all metrics. Finally, I will guide you live via desktop sharing to ensure you can replicate the workflow securely without sharing sensitive data. I have extensive experience in Excel, Power Query, Power Pivot, VBA, and advanced data modeling, which ensures efficient, accurate, and maintainable solutions. Thanks, Asif
$12 USD på 40 dage
4,6
4,6

Dear , We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time. We are 25 years in this business and our technical specialists have strong experience in Excel, Data Analysis and other technologies relevant to your project. Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews. Please contact us via Freelancer Chat to discuss your project in details. Best regards, Sales department Tangram Canada Inc.
$25 USD på 5 dage
4,4
4,4

With my vast experience in advanced Excel solutions, VBA automation, and data cleaning, I believe I'm the best fit for your project. My dedicated expertise lies not only in managing complex Excel models like yours but in optimally restructuring them for efficiency and accuracy. Whether it's merging new raw files while eliminating duplicates or reconfiguring your model using star schema principles, you can trust me to flawlessly execute these tasks. When it comes to performance tuning, few can rival my skills. I understand the intricacies of ensuring smaller file sizes, quicker refreshing times, and the use of efficient calculated columns or DAX measures where appropriate. By simplifying the overall structure of your workbook, future updates will be a breeze for you, just as you desire. My ability for desktop-sharing and my strength with Power Query, Power Pivot, VBA automation within native Excel techniques aligns perfectly with your project needs. Although I fully acknowledge your need for data privacy, I assure you that we can still work smoothly together during our scheduled calls as I walk you through the changes made using screen-sharing tools. Timing-wise, my goal isn't just to deliver the first revision as quickly as possible but also to ensure its accuracy. Therefore, without seeing your file yet, it is hard to give an accurate timeline. Nonetheless, I'm confident in my efficiency and reliability to get this task done within a reasonable time frame.
$8 USD på 40 dage
4,5
4,5

With my extensive 8+ years of experience in Data Analytics and Science, I offer you a wealth of Excel proficiency that can optimize your workbook. My range of skills includes not only mastering Excel's advanced features, Power Query, Power Pivot and VBA but I am also well acquainted with Power BI and other data visualization tool as well. Thus, I have the competency to tackle complex tasks like merging new data sources with existing tables, resolving inconsistencies in historical records, upgrading model relationships for streamlined maintenance, eliminating redundant joins and enhancing overall workbook speed – all within a robust star schema. Moreover, to maximize the efficiency of your workbook, I'll minimize the file size while ensuring quick refreshes in a performance-tuned manner. Additionally, my expertise extends to Python & ML (including TensorFlow / PyTorch) which could prove advantageous in your future projects. Also, owing to my exposure to diverse industries such as finance and e-commerce –I'm well-versed with maintaining strict data privacy protocols- meeting the requisites of your project perfectly. Lastly, along with delivering a revised workbook that blends seamlessly into your existing system within the stipulated deadline, I will personally walk you through the changes via desktop-sharing tool so you can familiarize yourself with the enhanced version effortlessly for future updates. Let's power up your Excel model together!
$8 USD på 40 dage
3,7
3,7

Hi there, I appreciate the opportunity to assist with optimizing your Excel data model! Your detailed requirements show you've put a lot of thought into this project, and I'm confident I can enhance the performance of your workbook. 1. **Data Cleaning**: I'll bring in the latest raw files while addressing duplicates and typing errors, ensuring your data is accurate. 2. **Model Restructuring**: Implementing best-practice star schema principles will streamline your relationships and make them more efficient. 3. **Performance Tuning**: I will reduce file size and improve refresh speeds, focusing on efficient DAX measures and calculated columns where appropriate. 4. **Simplification**: By restructuring the model, future updates will be handled much more easily. 5. **Validation**: I'll ensure that all existing pivot tables and charts reflect the updated model accurately. 6. **Guidance**: During our call, I'll walk you through these changes using Power Query and Power Pivot. To get started, I just need access to your latest data sources. I can turn around the first revision quickly once we connect! Thanks,
$20 USD på 32 dage
3,0
3,0

Hi Sir, I understand you need an Excel specialist to clean, extend, and optimize your master workbook while keeping all existing pivots and logic intact. I will guide you live through merging new data, correcting inconsistencies, restructuring relationships using star schema best practices, and improving performance with Power Query, Power Pivot, DAX, or VBA. With strong experience in complex Excel models, I focus on accuracy, speed, and making future updates simple and repeatable.
$12 USD på 40 dage
2,7
2,7

Hi there, I understand the importance of your master workbook and how it serves your weekly needs. Optimizing the Excel data model while ensuring accuracy and performance is my priority. With over 7 years of experience in software development and data analysis, I have the skills needed to tackle complex data challenges. I specialize in utilizing Power Query, Power Pivot, and VBA to clean data, improve structures, and streamline workflows. My approach will ensure we eliminate inconsistencies and enhance performance so that future updates are seamless. I will walk you through each step live, ensuring you can replicate the process confidently. Let’s discuss what you need to get started, and I’m ready to begin this optimization for you as soon as possible. Best, Andrii
$25 USD på 26 dage
2,0
2,0

This project requires optimizing an Excel data model where inefficient formulas, large datasets, or poor structure can slow performance and reduce reliability. I would streamline tables, improve formulas and relationships, and ensure the model runs efficiently while maintaining accuracy and scalability. Which specific analyses, outputs, or performance issues should be prioritized during optimization?
$8 USD på 40 dage
2,0
2,0

Hi there, I understand the vital role your master workbook plays in your weekly reporting, and I'm confident I can assist you in cleaning and optimizing your data model effectively. With extensive experience in Excel, including proficient use of Power Query, Power Pivot, and VBA, I can merge your new and existing raw files, eliminate inconsistencies, and ensure your data is both accurate and efficient. My approach will include restructuring your data to adhere to best-practice star schema principles, optimizing performance for speed and ease of use, and simplifying the overall structure. After making these improvements, I will ensure that your pivot tables and charts still reflect the accurate business logic. I'm prepared to guide you through each step live, ensuring you feel confident to replicate the process in future updates. I can begin the first revision within a day. Please message me with your availability for our call and any initial raw files you can share so we can get started right away. What specific Excel techniques are you most comfortable with for this process?
$30 USD på 16 dage
0,0
0,0

Hello, I would like to grab this opportunity and will work until you are 100% satisfied with my work. I am an experienced professional with many years of hands-on experience in Excel, Data Analysis Please come over chat and discuss your requirement in a detailed way. Regards, Rajesh Rolen
$12 USD på 40 dage
0,0
0,0

Hello, there! I bring a unique perspective to your Excel optimization project. Though I'm unable to access the file directly, my proficiency with data analysis in Excel will ensure that every aspect of your project is handled deftly. My experience lies in managing and optimizing complex data structures across different platforms, which aligns perfectly with your requirement to merge and cleanse data from multiple sources for your pivot tables. Furthermore, my expertise in Power Query, Power Pivot, and VBA within Excel makes me highly qualified to optimize your model for quicker refresh and easier maintenance. I excel at constructing efficient calculated columns and DAX measures as needed, ensuring optimal performance and overall simplicity. In addition to my technical skills, my approachable nature allows me to communicate complex processes effectively. You can count on me to walk you through every change via desktop-sharing tools so you can replicate them confidently in the future. My goal is not just to deliver a high-performing workbook but also to empower you with the knowledge needed to maintain its efficiency yourself. Choose me for a meticulously optimized workbook that caters precisely to your needs and an all-around reliable partnership.
$12 USD på 40 dage
2,3
2,3

Deerfield, United States
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Medlem siden sep. 4, 2024
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