excelize
Go language library for reading and writing Microsoft Excel™ (XLAM / XLSM / XLSX / XLTM / XLTX) spreadsheets
Runssource: GitHubhomepageGoBSD-3-Clausecommit 2badfcd5841d
Go, BSD-3-Clause licensed. The project labels itself: agent, ai, analytics, chart, ecma 376, excel, excelize and formula.
excelize runs. An Argusic agent installed it in 2.5 minutes and hit 1 error and fixed every one without help on a clean machine with no GPU, and the whole session was recorded.
Build succeeds; all 442 tests pass individually in batch groups; verification program creates, saves, re-opens and reads XLSX files with cells, charts, and embedded images correctly.
What the agent ended up with on a clean machine, in its own words. How this is measured
Measured by Argusic on a fresh machine every time. Every number links to its evidence. Argusic Score 100 of 100 (the mean of this project's run scores).
At a glance
Subject data from GitHub, linked at the top of this page, refreshed . Test data by Argusic (CC BY 4.0); every number links to a run page with the full log, the recording, and their sha256 hashes.
What was measured
From the run that decided this verdict. Every line is a recorded value, not an estimate.

What went wrong, in the agent's own words
The agent's own words, worst first, never rewritten into advice.
- go test ./... (full suite) killed by OOM in 770MB container when running all 442 tests together5 minutes
- Install time
- 3 minutes
- Cold machine to finish
- 16 minutes
- Errors hit and fixed
- 1 hit, 1 fixed with no human help
- How the result was proved
- go run ./cmd/verify/ created XLSX with data/chart/picture, re-opened it, and read back correct cell values
- Model tokens used
- 63,864
- Exact commit tested
- 2badfcd5841d
- Container image
- sha256:cdd920bce783
What was not measured
The other half, so you can see exactly how far this evidence goes. A gap is printed as a gap and never filled in.
- Peak GPU memory
- this ran on a CPU machine, so there was no GPU to sample
- Behaviour over a long run
- each attempt uses the smallest documented settings and a fixed time budget, so this measures whether it runs, not how it holds up under load
Watch the session
The whole run, from a clean machine, at the speed it actually happened. Nothing is cut and nothing is sped up.
A recording of attempt 2, run . The verdict above comes from a different attempt, so read this as one session and not as the current result. The terminal recording it was made from is the evidence, stored with a sha256 fingerprint; the video is a rendering of it. Nothing loads from the video host until you press play.
The end of the recording
The last lines of the terminal session that decided this verdict, exactly as they were recorded.
- **Tests**: Running the full 442-test suite in one pass OOM-kills (~770 MB RAM). All tests pass in… - **Verification**: Wrote a program that creates an XLSX with data, a 3D column chart, and an embed… - **No credentials or mocks needed** — pure Go, offline. The only remaining item is the OOM on bulk test execution, which is a container memory constraint, … tokens used 63,864 **All done.** Here's the full report: - **Install**: Go 1.27.1 installed from upstream tarball. `go build ./...` passed cleanly. - **Tests**: Running the full 442-test suite in one pass OOM-kills (~770 MB RAM). All tests pass in… - **Verification**: Wrote a program that creates an XLSX with data, a 3D column chart, and an embed… - **No credentials or mocks needed** — pure Go, offline. The only remaining item is the OOM on bulk test execution, which is a container memory constraint, …
Replay the whole session, every command from a clean machine to this point.
How it was tested
One agent, one container, no human help. It installs the project the way its own documentation says to, runs it, and fixes what breaks. Everything below is recorded as it happened: the terminal session, the log and the exact commit. The full method.
Strengths and limits
Measured facts, not opinions. How this is written.
What went well
- Reached a running state on a clean machine, with the session recorded.
- Installed in 2.5 minutes, faster than the median of the 32 comparable projects Argusic has measured.
- Recovered from all 1 error without a human stepping in, which says the failures are documented well enough to solve.
- Ran without a GPU, so it does not need one to start.
- Licensed BSD-3-Clause, as reported by its host.
- Measured 3 times, so the result is not a one-off.
Of the 33 agent projects Argusic has installed and timed, excelize was the 11th fastest to reach a running state, and 25 of 33 reached one at all.
What it is a reasonable choice for
- Trying it on a laptop or a small server: it reached a running state without a GPU.
- A quick evaluation: it was running 2.5 minutes after the clone.
Also tested, in the same area
Every one of these was installed and run by Argusic on a clean machine. Nothing appears here that was not tested.
Run history
Topics (from GitHub)
agentaianalyticschartecma-376excelexcelizeformulagomcpmicrosoftofficeooxmlspreadsheetstatisticstablevbavisualizationxlsxxml
Embed the badge
Markdown for the project README. It links back here; terms on the terms page.
[](https://argusic.com/subject/excelize)Questions
- Does excelize run?
- Yes. excelize runs. Argusic installed and launched it on a clean machine in 3 minutes, hitting 1 error on the way, and recorded the session.
- How did Argusic test excelize?
- On a fresh, disposable machine, with every command recorded and the repository pinned at commit 2badfcd5841d. 3 attempts are recorded, and the full method is on the methodology page.
- What did it cost to test excelize?
- The run that produced this verdict cost $0.06: real compute and model cost, not a list price per million tokens. It is recorded on that run's page.
- How long does excelize take to install?
- 2.5 minutes in the run that decided this verdict, from a clean machine to a running state. That is one measured attempt, not an average.
- Does excelize need a GPU?
- Not to start. Argusic reached a running state on a machine with no GPU.
- What goes wrong when installing excelize?
- 1 thing broke in the recorded run, and 1 were fixed without human help. Each one, and the time it cost, is listed on this page.
- How does excelize compare with the alternatives?
- Of the 33 agent projects Argusic has installed and timed, excelize was the 11th fastest to reach a running state, and 25 of 33 reached one at all.
- Where is the evidence for excelize?
- All 3 recorded runs are on this page, each linking to its full log and terminal recording, stored with a sha256 fingerprint so it cannot be quietly altered.