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Five signs your business has outgrown its spreadsheets

Spreadsheets are excellent software. Here is how to tell when yours has quietly become the most fragile part of your company.


Spreadsheets get unfairly mocked by people who sell software. They are genuinely extraordinary: free-form, instantly changeable, and understood by everyone you employ. Most small businesses should run on them for longer than a developer would like to admit.

But there is a point where the spreadsheet stops saving you time and starts quietly charging rent. Here is how to recognise it.

1. One person is the file

There is someone in your company who is the only one who really understands the workbook. They know which columns are typed and which are calculated, which tab is the real one, and why row 340 must never be sorted. If they are on holiday, some part of the business waits.

This is not a technology problem yet. It becomes one the day that person resigns, and you discover the operation was documented entirely inside one head.

2. Two people cannot use it at the same time

The tell is a file called something like orders_v4_FINAL_juan.xlsx. Or a shared file where everyone has learned not to type at once because the last time, someone’s morning disappeared.

Spreadsheets were designed for one person thinking. The moment they become a shared record that several people write to during the same hour, you are using a calculator as a database.

3. The same number lives in three places and they disagree

You have a total in the sales sheet, a different total in the invoicing software, and a third in the report you send the accountant. Someone has to reconcile them by hand, and that person has learned which one to “trust”. That instinct is expensive: it means your business is making decisions on a number nobody can actually vouch for.

4. The rules exist, but only in people’s heads

Ask why a certain client gets a different price and you get an answer that starts with “well, usually…”. The spreadsheet cannot enforce that rule, so the rule lives in whoever is filling it in. New staff learn it by making the mistake first. Every exception is invisible until it causes a problem.

Software’s real advantage over a spreadsheet is not calculation. It is that it can refuse to accept something wrong.

5. Answering a simple question takes a person ten minutes

“How many open orders are older than a week?” If someone has to filter, copy, paste and count to answer that, you are not looking at a data problem — you are looking at a question your business asks constantly and cannot answer cheaply. Multiply ten minutes by how often that question is asked, and you have a real number for what the spreadsheet costs.

What to do about it

Not “buy a platform”. The most common mistake at this stage is replacing one flexible spreadsheet with one rigid subscription that fits your business slightly worse in every direction.

A better sequence:

  1. Find the single most expensive spreadsheet. Usually it is the one with a person’s name attached to it in conversation.
  2. Write down what it must never allow. Double bookings, negative stock, missing client references. Those constraints are the actual specification.
  3. Replace only that. Keep the rest in spreadsheets. There is nothing wrong with a company running one custom tool and eleven spreadsheets — that is what a healthy small business looks like.
  4. Keep an export. Any tool you adopt should be able to give you your data back as a file. If it cannot, you have swapped a fragile spreadsheet for something worse: a hostage situation.

The goal was never to eliminate spreadsheets. It is to stop asking one to be a database, a rulebook and an institutional memory at the same time.

If you recognise your company here, book a free call — bring the spreadsheet.

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