# Adding support to .adl/adls/opt/oet... as allowed file extensions in upload attachments

**Category:** [Site Feedback](https://discourse.openehr.org/c/site-feedback/2)
**Created:** 2019-11-14 09:11 UTC
**Views:** 2237
**Replies:** 5
**URL:** https://discourse.openehr.org/t/adding-support-to-adl-adls-opt-oet-as-allowed-file-extensions-in-upload-attachments/147

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## Post #1 by @yampeku

Sending little archetype snippets seems something we will end doing. I assume these file extensions (at least) should be added

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## Post #2 by @thomas.beale

We can specify languages for syntax highlighting :
![image|645x197](upload://kyiQ1tnFzcVFx6mY7zxA5d8pZBL.png) 
some work would be needed to support things like ADL (see the link)

And I've now added the requested extensions for upload types:
![image|627x133](upload://tRZX13KGVIGrTz4pW1V8HC0N0VE.png)

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## Post #3 by @yampeku

I actually have these kinds of rules defined somewhere. I can have a look at it

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## Post #4 by @pieterbos

We do have ADL 2 syntax highlighting in javascript using the Ace editor. Can be adapted to support ADL 1.4 relatively easily.
I can share the code, but I'm not sure if it helps. I think discourse uses highlightjs, which is a bit of a different approach than Ace.

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## Post #5 by @siljelb

Could .xmind and .mm be added too? We use these for mindmaps.

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## Post #6 by @thomas.beale

Hi Silje,
I've now done this.

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**Canonical:** https://discourse.openehr.org/t/adding-support-to-adl-adls-opt-oet-as-allowed-file-extensions-in-upload-attachments/147
**Original content:** https://discourse.openehr.org/t/adding-support-to-adl-adls-opt-oet-as-allowed-file-extensions-in-upload-attachments/147