Fix, Correct, and Upgrade Your Spreadsheet or Excel Tool

Pro

Thomas Biziouras

Contact for pricing

About this service

Summary

If your spreadsheet is confusing, broken, or outdated — I can turn it into a clean, powerful, and easy-to-use tool.
I help professionals, freelancers, and small teams fix and upgrade their Excel workbooks, whether they were built years ago or yesterday. From small fixes to full overhauls, I work with clarity, logic, and structure — making sure everything runs smoothly and is easy to maintain.
What I do:
🧼 Fix broken formulas, broken links, errors, and validation issues
🧠 Reorganize layout and logic for better clarity and flow
🔁 Update dropdowns, named ranges, tables, and structure
⚙️ Repair or upgrade VBA (buttons, macros, workflows)
🧾 Create or improve dashboards, reports, and summaries
💾 Modernize your file to be scalable, readable, and cloud-ready
Every spreadsheet is restructured using clean Excel logic: proper table architecture, named ranges, and intuitive UI. I never use third-party add-ins — only native, portable, and understandable Excel.

Process

1. You send me your Excel file and a short description of what’s broken or unclear.
2. I review the logic, structure, and layout to identify key problems.
3. I clean and fix formulas, links, and formatting — and optimize the file for usability.
4. I send you the updated version for review.
5. We finalize the delivery with optional suggestions for improvements or automation.

FAQs

  • What if I don’t know exactly what’s broken?

    No problem — I’ll audit the file and tell you what needs fixing and why.

  • Will you use macros?

    Only if it helps simplify things. Otherwise, I stick to formulas and named ranges.

  • Can you also improve the visual layout?

    Yes — I often reorganize and format the workbook to be easier to read and use.

  • Will I be able to edit the file later?

    Absolutely. You get a fully editable Excel workbook with no hidden restrictions.

  • What types of Excel files do you fix?

    I handle budgeting tools, dashboards, calculators, trackers, planners, and business models.

  • Do you use any external tools or plugins?

    No. I build 100% Excel-native solutions (VBA/macros included if needed).

What's included

  • Repaired and Cleaned Excel File

    All broken logic fixed (formulas, references, structure)

  • Visual Cleanup (optional)

    Reorganized layout, table formatting, and better structure

  • Upgrade Suggestions

    Short list of improvements for future scaling or automation

Example projects

Excel Cash Flow Tracker for Project-Based Construction Budgets

Excel Recipe & Inventory Manager with Cost-Per-Portion Logic

Excel Bookkeeping System with Dashboard & P&L Automation

Recommendations

(5.0)

Recommended

Quick turn-around of high-end, sophisticated Excel applications and Powerpoint presentations. For years, we have used his customized applications in our trading activities, our presentations, our variable Excel spreadsheets. Great visuals, superb ideas for improving our visuals, and always learning more to keep us happy.

Skills and tools

Automation Engineer

Data Analyst

Data Engineer

Excel VBA

Excel VBA

Microsoft Excel

Microsoft Excel

Industries

Professional Services
Business Management
Accounting & Tax

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Example projects

Contact for pricing