Skip to navigation
Platform AdministrationGovernance

Blocked file extensions

View as Markdown

Atomicwork rejects files with certain extensions at the point of upload. This applies across the platform — request attachments, email forwarding, message attachments, internal notes, and files received through external connectors. A blocked file cannot be uploaded regardless of its content.

This policy exists to prevent executable code, scripts, and other potentially harmful file types from being stored or distributed through your Atomicwork environment.

Blocked extensions

Executables and installers

exe, com, cpl, dll, msi, msp, msix, msixbundle, appx, appxbundle, apk, app, dmg, bin, pif, scr, sys, vxd, xll, ex, ex_, ade, adp, mde

Scripts and source code

bat, cmd, vb, vbs, vbe, ws, wsh, js, jse, wsf, wsc, hta, psm1, psd1, sh, csh, ksh, tcsh, bash, zsh, pl, py, rb, php, asp, aspx, jsp, java, swift, mjs, pm, t, nsh, sct, shb

Macro-enabled Office files

docm, xlsm, pptm, dotm, xltm, ppsm, potm

Disk images, archives, and packages

iso, img, vhd, jar, cab, xz, diagcab, diagcfg, diagpkg

Project and system files

reg, inf, ins, isp, lib, msc, mst, gadget, chm, jnlp, vbproj, csproj, pyproj, rbproj

Where this applies

The block applies wherever files are uploaded into Atomicwork:

  • Request attachments — files attached to tickets, incidents, problems, and service requests.
  • Email forwarding — attachments on emails forwarded into Atomicwork from a connected mailbox.
  • Messages and comments — files added to internal notes, comments, and conversation messages.
  • Connector imports — files received through integrations with external systems.

If a user or integration attempts to upload a file with a blocked extension, the upload is rejected and the file is not stored.

Knowledge base exceptions

The knowledge base has its own allowlist of file types it can ingest and extract text from. Some file types that are blocked for platform uploads — such as ASPX — are supported for knowledge base ingestion, where they are processed as text content rather than executed. For the full list of file types the knowledge base supports, see supported file types.

FAQ

  • Can I override the blocked list for my organization? No. The blocked extensions list is enforced globally and cannot be customized per tenant or workspace.
  • What happens if an email with a blocked attachment is forwarded to Atomicwork? The email is processed, but the blocked attachment is stripped and not stored. The rest of the email content is preserved.
  • Are ZIP files blocked? No. ZIP, RAR, 7z, and other archive formats are not on the blocked list. They can be uploaded as attachments, though the knowledge base cannot extract text from them.
  • Are macro-enabled Office files always blocked? Yes. DOCM, XLSM, PPTM, and other macro-enabled formats are blocked because macros can contain executable code. Use the standard formats (DOCX, XLSX, PPTX) instead.