A3 Report Templates: Five Free Excel and PDF Downloads

An A3 report puts one problem on one sheet, from background and current condition to root cause, countermeasures and follow-up. Pick the template that fits your job, download it as Excel or PDF and fill it in. No sign-up needed.

Which template for which job

Use this table to pick a starting point. Most problems need two or three of the five, not all of them.

Template	Use it when
A3 problem-solving report	You have to tell the whole story of one problem on a single page.
Root-cause worksheet	The cause is not clear yet and you need to dig before you write the report.
Countermeasure and action plan	Several actions with different owners have to be tracked over weeks.
Kaizen proposal	Someone on the floor has an improvement idea that the team should judge.
Kaizen result report	A change is finished and you must show what it brought and what was standardised.

Download the five templates

Each template comes as an editable Excel file (XLSX) and a print-ready PDF. The A3 problem-solving report is laid out for A3 landscape, the other four for A4 landscape. They contain no macros and no external links.

How to fill in the A3 problem-solving report

Work from the left: write the background and the current condition with facts, then name a target with a measure, a starting value and a date. On the right, ask why until you reach a cause you can act on, list countermeasures against that cause and plan who does what by when. Fill in the follow-up block last, after the change has run for a while.

How to fill in the root-cause worksheet

Start with a problem statement that holds facts and no solution. Collect possible causes in the six categories, one per line, without judging them yet. Pick the most likely cause, ask why five times and write down how you know each answer; then check whether removing the confirmed cause would make the problem go away.

How to fill in the action plan

Give every action one owner and one due date; an action for "the team" is owned by nobody. Write the check next to each action: what will you look at to see that it worked? Go through the list at a fixed time, for example weekly, and pick the status from the dropdown list.

How to fill in the kaizen proposal

Describe the problem as it is today, then the idea in a way that another worker could try it. Say what you expect to get better and how it would be measured, and give an honest guess of the effort. Use the decision block when the team reviews the idea.

How to fill in the kaizen result report

Measure before and after with the same method and enter both values; the saving and the percentage are calculated for you. If a higher value is better, for example output per hour, a negative saving means an improvement. Finish with the calculation behind any saving you claim and the standard that now carries the change.

A3 on paper and in Yamazo Studio

These templates are plain Excel and PDF files and work without any software from us. Yamazo Studio also has an A3 kaizen board with the same seven sections and an approval chain from draft to reviewed to approved. The templates are separate files, not exports from the app.

Frequently asked questions

Are these A3 templates really free?

Yes. You can download every file directly, without an email address or an account, and use, edit and print them for your own work.

Does an A3 report have to be on A3 paper?

No. The name comes from the ISO A3 paper size, 297 × 420 mm, and the idea is to keep the whole story on one sheet. The A3 problem-solving report is laid out for A3 landscape; with the "fit to page" print setting it also prints on A4.

Which programs open the Excel files?

Any program that opens XLSX files, such as Microsoft Excel, Apple Numbers, LibreOffice Calc or Google Sheets. The files contain no macros and no external links.

What is the difference between the A3 report and the root-cause worksheet?

The A3 report tells the whole story of a problem on one page and holds only a short root cause analysis. The root-cause worksheet is the place to dig first: it adds a collection of possible causes in six categories and a column for the evidence. Many teams use the worksheet first and carry the result into the A3 report.

Related resources

Kaizen ROI Calculator How to Do a Time Study Yamazumi Chart Kaizen — Continuous Improvement in Lean Manufacturing Takt Time Calculator

Measure the current condition instead of estimating it

Yamazo Studio measures work elements from shop-floor video, so the current condition on your A3 is a measured value and not a guess.