Excel automation
Automating Excel processes
In many businesses, important workflows run in Excel: the weekly evaluation, the calculation, the reconciliation of two lists, the report for management. That works – as long as someone performs the same steps by hand every week.
Exactly these steps can usually be automated without leaving Excel. I rework existing workbooks, program 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 say so.
Typical starting points
- Every week, data from an export is copied into an evaluation 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 small deviations – and nobody dares to touch it.
- The monthly report consists of the same manual steps each time: paste data, drag formulas, update charts, save as PDF.
Who is this for?
Departments and small to medium-sized businesses where Excel is part of daily work: controlling, sales, purchasing, logistics, HR, administration. You don't need a technical background. It is enough if you can describe the workflow that costs you time on a regular basis.
What can be automated
Importing and checking 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-and-paste and shuffling columns.
Merging files
Consolidate several workbooks or sheets into one overview on a regular basis, even if the source files are structured differently.
Automating calculations
Bring recurring calculations into a traceable structure, safeguard inputs and make results reproducible.
Generating reports
Create evaluations, charts and finished report files at the push of a button – as an Excel file, PDF or email attachment.
Reworking existing VBA solutions
Stabilise grown macros, add error handling, untangle and document workflows 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 choice?
Excel remains the right tool when a team or a person works with a clearly bounded file, the data comes from a few known sources and the workflow maps well onto tables. In that case a well-built Excel tool is usually the fastest and cheapest solution – and your team doesn't need to learn anything new.
Excel reaches its limits when several people have to work in the same file at the same time, different versions circulate by email, permissions or a traceable change history matter, or the macros are so complex that every adjustment becomes a risk.
Then I first check whether the existing solution can be simplified and stabilised. Only when that no longer holds is a dedicated web application the better choice.
When 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 is familiar with Excel and the solution should stay there.
- an existing file works but requires too much manual work or has become error-prone.
Less suitable when …
- many people have to work with the same data at the same time.
- permissions, central data storage or a change history are needed.
- the data has to be fetched regularly from websites, portals or APIs – then data automation in the background is often the better foundation.
How I work
- 01
Understand the workflow
We go through today's process together: Where does the data come from, which steps follow, where do errors occur, what should come out at the end? A short call and a look at the existing file are enough.
- 02
Propose a solution
You receive 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
Implement and test
I build the solution in short steps and test it with your real data. You see intermediate 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 – without password protection that makes you dependent on me
- Error handling and checks that make deviations in the data visible instead of hiding them
- Short documentation and a walkthrough so your team can operate and adapt the solution
Limits
- Excel is not a database. With very large data volumes or many simultaneous users, every Excel solution reaches its limits.
- VBA runs in the desktop version of Excel. In Excel in the browser or on mobile devices, macros are not available.
- If the source data is unstructured – free text or scanned receipts, say – other tools are needed 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, performing calculations, producing evaluations and charts, sending reports as PDF or email. It only gets difficult when every run requires human decisions that cannot be captured in rules.
- Does an existing Excel file have to be rebuilt?
- Usually not. As a rule the file stays and is extended with automation or reworked where it causes problems. Rebuilding 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 reworked?
- Yes. A project often starts exactly there: a macro somebody wrote years ago that now breaks on small deviations and that nobody wants to touch. I read the code, stabilise it, add error handling and document what it does.
- Can Excel read 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 variant 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 have to work at the same time, versions circulate by email, permissions or a change history are needed, or the macros have become so complex that every change is a risk. Before that, it is worth trying to simplify 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, without password protection. You or another provider can adapt it at any time.
- Can existing Excel processes be automated step by step?
- Yes, and that is often the better way. We start with the step that costs the most time or causes the most errors and then extend the automation bit by bit. The process stays usable at all times.
Next step
Which Excel workflow are you still doing by hand?
Briefly describe what happens in the file today. You get an honest assessment of what can be automated and whether Excel remains the right tool for it.