I build custom Excel tools that eliminate repetitive work, organize complex data, and transform fragile spreadsheets into dependable business systems.
Actual workbook screens and carefully labeled examples — no empty templates and no exposed client data.
ORIGINAL EXCEL INTERFACECustomer intelligence, sales activity and campaign planning working as one Excel-based operating workflow.
ORIGINAL EXCEL INTERFACEExcel VBA inserts activity icons, aligns R/A/C/I markers, automatically draws flow arrows and exports complete process sheets.
From a single frustrating macro to a connected Excel-based operations system.
Replace repetitive spreadsheet work with dependable macros, buttons, and workflow automation.
Explore serviceTurn scattered sheets into searchable, structured, user-friendly Excel applications.
Explore serviceTransform raw Excel data into useful decisions with automated KPIs and reporting.
Explore serviceBuild tailored Excel-based CRM, operations, inventory, planning, and mini-ERP workflows.
Explore servicePractical Excel models for tracking payments, commissions, budgets, and cash flow.
Explore serviceRepair slow, broken, fragile, or overly complicated Excel workbooks without starting from zero.
Explore serviceDiagnose the bottleneck, design a better Excel workflow, then automate only what matters.
Explore serviceStop copy-pasting exports. Clean, combine, validate, and transform data inside Excel.
Explore serviceRepresentative examples from my previous Excel automation work. Specific client and business details are anonymized.
A repetitive report-import workflow rebuilt as a guided Excel automation process. Less copying and pasting. More consistent data handling.
Structured Excel records with intuitive editing, validation, search, and controlled data workflows.
My background combines hands-on operational problem solving with years of advanced Excel and VBA development. That means I look for the bottleneck behind the spreadsheet—not only the formula you asked to fix.
How I workGood automation starts with understanding the business process.
Show me the workbook, task, or workflow you want to improve.
We clarify outputs, rules, edge cases, and the simplest Excel approach.
I create the Excel-based solution, test scenarios, and refine the user experience.
You receive working files and clear instructions for day-to-day use.
Clear expectations lead to better Excel tools.
Yes, when Excel suits the number of users, data volume, and workflow. I've worked on Excel-based CRM, tracking, scheduling, commissions, and management systems. For high-concurrency or security-critical systems, I’ll explain Excel’s limitations instead of promising it can do everything.
Absolutely. Many projects start by improving existing workbooks, macros, data imports, reporting, or workflows rather than replacing everything.
Yes. Solutions can be designed for specific versions such as Excel 2019, avoiding unsupported functions when required. Some features differ on Mac or Excel Online, so platform requirements are discussed upfront.
Scope determines pricing. A workbook repair, a defined automation, and a complete Excel-based business system require very different work. Share your current process and desired result to receive a tailored estimate.
Yes. An Excel workflow review or solution-planning session can be the right starting point if you're not yet sure what to automate.
I'm Dénes, the developer behind ExcelMastas. I work directly with businesses to turn complex Excel processes into reliable, practical tools.
From VBA automation to custom databases and manufacturing workflows, I combine hands-on business experience with spreadsheet engineering.
Meet your Excel consultantTell me what takes too long, keeps breaking, or feels more complicated than it should. We’ll start with the workflow, not a sales pitch.
Start a project conversationTen source-linked Fiverr client experiences, with clearly identified verified excerpts and review context.
A demanding Excel development project evolved as the customer refined their methodology and reporting requirements.
Source-based review summary. See Fiverr for the original wording.
The client struggled to articulate the specification and needed complex multi-variable lookups resolved.
Source-based review summary. See Fiverr for the original wording.
A business customer explicitly credited the completed Excel work with reducing effort and difficulties.
Source-based review summary. See Fiverr for the original wording.
4.9 / 5 official Fiverr rating · current review count on Fiverr · View Fiverr profile ↗
