Excel automation
Automate your Excel processes
In a lot of companies, important workflows run in Excel: the weekly analysis, the pricing calculation, the reconciliation of two lists, the report for management. It works – as long as someone repeats the same steps by hand every week.
Those are exactly the steps that can usually be automated without leaving Excel. I rework existing workbooks, write VBA macros with proper error handling, and make sure your team can keep running the result without me.
And if Excel is no longer the right tool for the process, I'll tell you.
Typical starting points
- Every week, data from an export is pasted into an analysis file, reformatted and checked.
- Several Excel files from different departments have to be merged into one overview on a regular basis.
- A calculation has grown over the years to the point where only one person really understands it.
- An old macro still runs but breaks on the smallest deviation, and nobody dares touch it.
- The monthly report is the same manual routine every time: paste data, drag formulas, update charts, save as PDF.
Who this is for
Business teams and small to mid-sized companies where Excel is part of daily work: controlling, sales, purchasing, logistics, HR, administration. No technical background needed. If you can describe the workflow that keeps costing you time, that's enough.
What can be automated
Importing and validating data
Read exports from ERP, CRM or accounting systems automatically, check them for completeness and plausibility, and bring them into the required structure – instead of copy-paste and shuffling columns.
Merging files
Consolidate several workbooks or sheets into one overview on a schedule, even when the source files are structured differently.
Automating calculations
Put recurring calculations into a traceable structure, protect the inputs and make the results reproducible.
Generating reports
Produce analyses, charts and finished report files at the push of a button – as an Excel file, PDF or email attachment.
Cleaning up existing VBA
Stabilize macros that have grown over time, add error handling, untangle and document the logic so the solution stays maintainable.
Documentation and handover
Every solution is documented so your team understands it and can adapt it if needed. The VBA source code stays open and belongs to you.
When is Excel enough, and when is a web application the better call?
Excel is the right tool when one person or a small team works with a clearly bounded file, the data comes from a few known sources and the workflow maps neatly onto tables. In that case a well-built Excel tool is usually the fastest and most economical solution, and your team doesn't have to learn anything new.
Excel hits its limits when several people need to work in the same file at the same time, versions circulate by email, permissions or a traceable change history matter, or the macros have become so complex that every tweak is a risk.
Even then, I first check whether the existing solution can be simplified and stabilized. Only when that no longer holds does a dedicated web application become the better choice.
If you have a file like this in use, a short conversation is usually enough to gauge which steps can be automated and whether Excel remains the right tool for the job.
Talk Excel automationWhen does it make sense?
Makes sense when …
- a recurring workflow can be described clearly and mapped onto tables.
- the data comes from a few known sources.
- your team knows Excel and the solution should stay there.
- an existing file works but takes too much manual effort or has become error-prone.
Less suitable when …
- many people need to work with the same data at the same time.
- you need permissions, central data storage or a change history.
- the data has to be pulled regularly from websites, portals or APIs – then background data automation is often the better foundation.
How I work
- 01
Understand the workflow
We walk through today's process together: Where does the data come from, what steps follow, where do errors creep in, what should come out at the end? A short call and a look at the existing file are enough.
- 02
Propose a solution
You get an assessment of which steps can be automated, whether Excel remains the right tool and roughly what the effort means, together with a concrete quote.
- 03
Build and test
I build the solution in short steps and test it with your real data. You see working versions early, not just at the end.
- 04
Hand over
You receive the finished workbook, the open VBA source code, documentation and a walkthrough for your team.
What you get
- A reworked or newly built Excel workbook that runs the workflow at the push of a button
- Open, commented VBA source code – no password protection that makes you dependent on me
- Error handling and checks that surface deviations in the data instead of hiding them
- Concise documentation and a walkthrough so your team can run and adapt the solution
Limits
- Excel is not a database. With very large data volumes or many simultaneous users, every Excel solution hits a ceiling.
- VBA runs in the desktop version of Excel. Macros are not available in Excel for the web or on mobile devices.
- If the source data is unstructured – free text or scanned receipts, say – other tools have to come first before Excel can help.
Frequently asked
- Which Excel tasks can be automated?
- Practically anything that follows a fixed pattern: reading and cleaning data, merging files, reconciling lists, running calculations, producing analyses and charts, sending reports as PDF or email. It only gets hard when every run needs human judgment that can't be captured in rules.
- Does an existing Excel file have to be rebuilt from scratch?
- Usually not. As a rule the file stays and gets extended with automation, or reworked where it causes problems. A rebuild only makes sense when the structure itself is the problem – for instance when data, calculations and presentation have been mixed in one sheet for years.
- Can existing VBA macros be fixed up?
- Yes. Projects often start exactly there: a macro someone wrote years ago that now breaks on small deviations and nobody wants to touch. I read the code, stabilize it, add error handling and document what it does.
- Can Excel pull data from other files automatically?
- Yes. Excel can read other workbooks, CSV exports, text files and many databases directly, via Power Query or VBA. Which route makes sense depends on what the source data looks like and how often it changes.
- When should Excel be replaced by a web application?
- When several people need to work at the same time, versions circulate by email, you need permissions or a change history, or the macros have become so complex that every change is a risk. Before that, it's worth simplifying the existing file. More on the custom web applications page.
- Do I get the VBA source code?
- Yes, always. The code stays open and commented, with no password protection. You or another provider can adapt it at any time.
- Can existing Excel processes be automated step by step?
- Yes, and that's often the better way. We start with the step that costs the most time or causes the most errors, then extend the automation piece by piece. The process stays usable the whole time.
Next step
Which Excel workflow are you still doing by hand?
Tell me briefly what happens in the file today. You'll get an honest assessment of what can be automated and whether Excel remains the right tool for it.