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  2. Using Slack
  3. Share files & conversations
    4. Restricted file types in Slack Connect

Restricted file types in Slack Connect

To help keep Slack secure, certain types of files cannot be added to Slack Connect channels and direct messages (DMs).


Blocked file types

  • .7z
  • .ade, .mde
  • .adp
  • .apk
  • .appx, .appxbundle
  • .aspx
  • .bat, .com, .dll, .exe, .msi
  • .cab
  • .cmd
  • .cpl
  • .dmg
  • .gz
  • .hta
  • .img
  • .ins
  • .ipa
  • .iso
  • .isp
  • .jar
  • .js
  • .jse
  • .jsp
  • .lib
  • .lnk
  • .msc
  • .msix, .msixbundle
  • .msp
  • .mst
  • .nsh
  • .pif
  • .ps1
  • .scr
  • .sct, .wsc
  • .shb
  • .sys, .vb
  • .vbe
  • .vbs
  • .vxd
  • .wsf
  • .wsh
  • .tar

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