IeumOffice
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Install help

When installing gets stuck

Pick the picture that looks like what is on your screen now. A pointer moves across it and shows you where to click.

On a Mac or Linux: Opening it the first time on a Mac · Installing on Linux

Microsoft Edge

"… isn't commonly downloaded" appears

IeumOffice is a new free program, so Edge treats it as a file it doesn't know well yet. Nothing is wrong with the file. Click through the steps below and the download goes through.

  1. Click the Download button, and the Downloads panel opens at the top right of Edge.
  2. When you see "… isn't commonly downloaded", move the pointer over the file name and click ··· (three dots).
  3. Click Keep at the top of the menu.
  4. When the confirmation appears, don't click the blue Delete; click Show more at the bottom left.
  5. Click Keep anyway, which has just appeared.
  6. Now click Open file, and the installation starts.

If a blue window appears when you open the file, continue with "Windows protected your PC" appears.

The screens are simplified redrawings for illustration. Depending on your Edge version, the wording or positions may differ a little.

Windows

"Windows protected your PC" appears

The blue window appears when you open the installer because Windows hasn't seen this program before. Don't close it, even if the only button is Don't run.

Is the window not blue, but white with "Smart App Control blocked …"? That window has no More info. Continue with When Smart App Control blocks it.

  1. Click More info below the text in the blue window.
  2. "Publisher: Unknown publisher" is shown because this is a free program made by one person. Click Run anyway, which has appeared below.

Next, the installer opens. Continue with What to click in the installer.

Windows 11

"Smart App Control blocked …" appears

This window often appears on a new laptop or on a PC with a fresh Windows installation. IeumOffice is distributed for free, so it has no signature that lets Windows confirm the publisher. Because of that, Windows 11 blocks it not only when you install it but also when you run it. This window has no Run button, and there is no way to allow just this one program. If you turn Smart App Control off, installing and running work. If you turn it back on, IeumOffice is blocked again, so you need to leave it off while you use IeumOffice.

  1. When the block window appears, click OK to close it.
  2. Type Windows Security into the search box next to the Start button, open it, and click App & browser control on the left.
  3. Click Smart App Control settings.
  4. Choose Off. Now open the downloaded installer again, and the installation starts.

Smart App Control blocks unfamiliar programs downloaded from the internet. Turning it off reduces that protection but lets you use IeumOffice. Virus & threat protection (Defender) in Windows Security stays on, so virus scanning continues. If you turn it on again later, IeumOffice will not run.

If the blue "Windows protected your PC" window appears after you turn it off, click More info → Run anyway in that window. The steps are in "Windows protected your PC" appears.

Clicking Get an app from Microsoft Store won't find IeumOffice. It isn't in the Store. On some PCs a notice says that once you turn it off, you can't turn it back on. Read it before you turn it off. If it is still blocked after you change the setting, restart the PC once. On a PC from your company or school you may not be able to change this setting, so tell the person who manages the PC. The screens are redrawn for illustration and may differ a little depending on your Windows version.

Edge · Chrome

I can't find the downloaded file

The downloaded file is in your browser's downloads list and in the Downloads folder on your PC.

  1. In the browser window, hold down Ctrl on the keyboard and press J to open the downloads list.
  2. In the list, click Open file under the file whose name starts with IeumOffice-Setup.
  3. If it isn't in the list, click the folder-shaped button at the top. When the Downloads folder opens, double-click the file.

Installer

What do I click in the installer?

In the installer, change nothing and just click the buttons at the bottom right, one after another.

  1. In "Choose Installation Options", leave Only for me selected as it already is, and click Next.
  2. Leave "Choose Install Location" as it is too, and click Install.
  3. Wait 1 to 2 minutes until the green bar fills up.
  4. With Run IeumOffice still checked, click Finish, and IeumOffice opens.

If you choose "all users", an administrator confirmation appears once more. On a PC only you use, it is simpler to leave the default as it is. When IeumOffice opens, follow the first-run guide to connect an AI. You can watch how on Connect an AI.

Mac · Linux

Installing on Mac and Linux

Opening it the first time on a Mac Beta

It runs on macOS 12 or later. Check your chip under Apple menu → About This Mac. If it starts with Apple M, get the Apple Silicon file; if it says Intel, get the Intel file. It is a free beta without an Apple developer signature, so you allow it yourself the first time only.

  1. Open the downloaded .dmg and drag IeumOffice into the Applications folder.
  2. Open IeumOffice from the Applications folder. When a warning appears, click Done.
  3. Open System Settings → Privacy & Security, click Open Anyway next to "“IeumOffice” was blocked …" near the bottom, and enter your Mac password.
  4. In the window that appears again, click Open. From then on it opens directly.

If it says "… is damaged and can't be opened", don't move it to the Trash. Run the line below in Terminal, then open it again.

xattr -dr com.apple.quarantine /Applications/IeumOffice.app

From 0.12.11, an app in the Applications folder updates itself: in the update window, click Update Now → Restart & Install, and it changes to the new version and opens again. If you are on 0.12.10 or earlier, this one time get 0.12.11 here and install it over the old one. For an app opened straight from the disk image, the update window opens the download page. If the app doesn't update itself, download it here again and install it over the old one. Install Claude Code or Codex by following the "Official install guide" on the AI connection card (Connecting AI on a Mac).

Installing on Linux Beta

There are three files for 64-bit (x86_64) Linux. Pick the one that fits your distribution.

  • AppImage — No installation: give it permission to run (chmod +x) and open it. It updates itself.
  • .deb package — Ubuntu and Debian family: sudo apt install ./ieumoffice_*_amd64.deb
  • .rpm package — Fedora, RHEL and openSUSE family: sudo dnf install ./ieumoffice-*.x86_64.rpm

.deb and .rpm install to /opt/IeumOffice and link the terminal command /usr/bin/ieumoffice. When a new version comes out, the app tells you, and the AppImage updates right inside the app. Install Claude Code or Codex by following the "Official install guide" on the AI connection card.

If it still doesn't work, tell us through Send feedback which screen you got stuck on. If you send a screenshot of that screen too, we can find the cause faster.