Foglio
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Download Foglio for Mac

Foglio 1.0 is free. One universal disk image works on every Mac with macOS 14 Sonoma or later, Apple silicon and Intel alike.

It is a first release: it handles everyday spreadsheets end to end, but keep backups of files that matter.

Download for MacView source on GitHub

Free · macOS 14+ · Apple silicon & Intel · 7.5 MB

Foglio 1.0.2 · All releases and checksums

  1. Download the disk image

    Click the download button to get Foglio-1.0.dmg (7.5 MB) from the project's GitHub releases.

  2. Drag Foglio to Applications

    Open the disk image and drag the Foglio icon onto the Applications shortcut next to it. Then eject the disk image.

  3. Open it the first time

    macOS asks for confirmation the first time because Foglio is not signed with a paid Apple Developer ID. The steps are below; you only do this once.

  4. Open your spreadsheets

    Double-click an .xlsx file and choose Foglio from Open With, or drag files onto the Foglio icon in the Dock.

“Unidentified developer”: how to open Foglio the first time

Foglio 1.0 is ad-hoc signed rather than signed and notarized with a paid Apple Developer account, so Gatekeeper cannot vouch for it and shows a warning the first time you open it. This is normal for small open-source projects, and you can read every line of the source code or build the app yourself.

macOS 15 Sequoia or later: double-click Foglio and close the warning. Open System Settings ▸ Privacy & Security, scroll down to the message about Foglio and click Open Anyway, then confirm with your password or Touch ID.

macOS 14 Sonoma: in Applications, right-click (or Control-click) Foglio, choose Open, then click Open in the dialog.

After that, Foglio opens normally like any other app.

Requirements

  • macOS 14 Sonoma or later
  • Apple silicon or Intel Mac (universal app)
  • About 19 MB of disk space
  • No account and no internet connection needed

Prefer to build it yourself?

Foglio is open source under MIT and Apache-2.0. With the Xcode Command Line Tools and Rust installed, scripts/build.sh builds the same universal app from source in a few minutes, without Xcode.

Release notes, older versions and the issue tracker are on GitHub. Curious how it works? Read about the technology.

git clone https://github.com/GetFoglio/foglio.git
cd foglio
scripts/build.sh
open build/Foglio.app

Frequently asked questions

Is the download safe?

The disk image is built from the public source code and published on the project's GitHub releases page. The macOS warning appears because the app is not notarized with a paid Apple account, not because anything was detected in it.

How do I update Foglio?

Foglio does not check for updates by itself, because it makes no network connections. Download the new version from this page or from GitHub releases and replace the app in Applications.

How do I uninstall it?

Drag Foglio from Applications to the Trash. Your spreadsheets are ordinary files and stay where you saved them.

Can I make Foglio the default app for xlsx files?

Yes. Select an .xlsx file in Finder, choose File ▸ Get Info, pick Foglio under Open with and click Change All….

Is there a version for iPhone, iPad, Windows or Linux?

No. Foglio is a Mac app only. The engine is cross-platform Rust, but the interface is written in AppKit.