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Spreadsheet Fix · Former KPMG consultant

Broken Excel file? I'll fix it in days, at a fixed price.

Wrong totals, #REF! errors, a file that takes minutes to open, or a model nobody dares to touch. I find what's wrong, fix it, and leave the file easier to work with than before.

Experience with teams at

  • KPMG
  • Deutsche Telekom (Hrvatski Telekom)
  • MOL Group
  • Opensignal
  • Mitel
  • Toptal

Sound familiar?

  • Totals that don't add up, and nobody knows why
  • #REF!, #N/A and #VALUE! errors after someone edited a sheet
  • A file so slow it freezes when you filter
  • A model built by someone who has since left

What you get

  • Find and fix broken formulas, #REF! errors and wrong totals
  • Clean up the structure so it's faster and easier to follow
  • Add checks that flag errors before they reach a report
  • Short notes on what changed and why

Real result

A similar project

Partner commissions, US telecom

−40%

commission reconciliation time

I reconciled years of fragmented partner data, defined which source wins for each service type and added validation rules, giving finance one trusted basis for payouts.

Read the case study

How it works

Simple, fixed price, no surprises

  1. 1

    Free 20-minute call

    Tell me what's slowing you down. I'll ask about your data, your report and what “done” looks like.

  2. 2

    Fixed quote within 1 business day

    Scope, price and delivery date in writing. You decide, with no obligation.

  3. 3

    I build it

    Fixes in a few days, automations and dashboards in 1–2 weeks, with a check-in along the way.

  4. 4

    Handover

    Short video and notes, a revision round included, and optional support afterwards.

Questions

Can you fix a file you've never seen?

Yes, that's the usual case. Send a copy (or an anonymised version) with a short description of what's wrong, and I'll look at it before quoting.

What if the file can't be saved?

Then I'll tell you before you pay anything, and quote a clean rebuild instead.

How much does it cost?

Every project gets a fixed quote after a free 20-minute call, so you know the price before any work starts. No hourly billing, no surprises. The starting prices cover a clearly defined job; more data sources, messy data, complex business rules or extra deliverables raise the quote. Quotes are in euros, or in US dollars for clients outside Europe, and exclude VAT where it applies.

Is my data safe?

Yes. I'm a CISA-certified information systems auditor and have led IT audits for banks, including a central bank. I sign an NDA on request, work under GDPR from the EU, and delete your files when the project ends. You can also share anonymised or sample data.

What if I'm not happy with the result?

We agree on what “done” means before I start, and every project includes a revision round. The job isn't finished until the file does what we agreed.