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Open an .asice file online

ASiC-E is a container for electronically signed documents, used by Estonia's DigiDoc4. Drop an .asice file into the box below to see its content and signers.

Your file never leaves your deviceFree, no account

What is an .asice file?

ASiC-E, short for Associated Signature Container Extended, is a file format defined by the European standard ETSI EN 319 162-1. Technically an .asice file is a ZIP archive holding the signed documents, a mimetype file and a META-INF folder. That folder contains the signatures in XAdES format (signatures0.xml, signatures1.xml …) and the file list manifest.xml.

In Estonia, .asice is the default format of the DigiDoc4 client: sign a document with an ID-card, Mobile-ID or Smart-ID and you get an .asice file. ASiC is one of the formats listed in Commission Implementing Decision (EU) 2015/1506 under the eIDAS regulation, which public sector bodies must recognise across the European Union. The same format also uses the extension .sce.

ASICE (.asice)
File extension.asice, .sce
MIME typeapplication/vnd.etsi.asic-e+zip
StandardETSI EN 319 162-1 (ASiC)
StructureZIP archive: documents + META-INF with signatures
Signature formatXAdES (less often CAdES)
Used inEstonia (DigiDoc4), Latvia, Lithuania and other EU countries

How to open an .asice file

  1. Choose the file

    Drop the file into the box on this page, or press the box and pick a file from your computer, phone or tablet.

  2. Read the documents

    The container is unpacked in your browser. PDF, Word, Excel, image and text files open in the preview straight away.

  3. Check signatures and download

    See each signer's name and signing time, and download the files one by one or all at once.

Opening the file on a computer and on a phone

Windows, macOS and Linux: open asiceviewer.com in a browser and drop the file onto the page. If you need an official validity confirmation, open the same file in the DigiDoc4 client too.

Android: open the page in Chrome and pick the file from Downloads, or install the ASiC-E Viewer app, which also opens files offline.

iPhone and iPad: save the attachment to the Files app, open asiceviewer.com in Safari and choose the file from there.

What you see about an .asice container

Once opened, ASiCE Viewer lists the files and signatures on the left and previews the selected file on the right. Each signature shows the signer's name and personal code, the signing time, the time-stamp time, the role and place (if given), and the certificate issuer and validity period.

On top of that, each file's digest is recomputed and compared with the one stored in the signature. If a file was changed after signing, or removed from the container, you get a clear warning.

ASiC-E Viewer app icon

ASiC-E Viewer for Android

Open signed containers on your phone, even offline. See the signature details and export documents to PDF or Word.

  • Works offline
  • .asice · .bdoc · .edoc · .adoc · .p7s
  • Export to PDF and DOCX
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Questions about .asice files

Why doesn't an .asice file open when I double-click it?

Because no program on your computer knows the extension. Install the DigiDoc4 client or open the file on this page – nothing needs to be installed in the browser.

Can I unpack an .asice file with a ZIP program?

Yes. An .asice file is a ZIP archive and can be unpacked after renaming it to .zip. But that only shows the files – not who signed them or whether they were changed after signing.

How do I convert .asice to PDF?

ASICE is a container, not a document. Open it here and download the PDF inside. If the container holds a Word document, the ASiC-E Viewer Android app can export it to PDF.

What is the difference between .asice and .sce?

None in substance. Both are extensions of the ASiC-E container; .sce is the shorter form allowed by the standard.

Other supported formats