# Pull Request Template
## Description
This PR expands the default upload rules to support PFX certificate
files (`application/x-pkcs12`, `application/pkcs12`, `.pfx`) across
private notes, Website, Email, and Telegram channels.
Also adds `.xls` / `.xlsx` extension fallbacks for cases where browsers
upload Excel files with an empty or generic MIME type.
### Utils Repo PR: https://github.com/chatwoot/utils/pull/61
Fixes
https://linear.app/chatwoot/issue/CW-7085/support-more-file-types-in-private-notes-and-in-app
## Type of change
- [x] New feature (non-breaking change which adds functionality)
## How Has This Been Tested?
### Screenshots
<img width="330" height="218" alt="image"
src="https://github.com/user-attachments/assets/80823250-893e-4509-adb9-61f845359151"
/>
## Checklist:
- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my code
- [ ] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules
---------
Co-authored-by: aakashb95 <[email protected]>
## Summary
- add a configurable MAXIMUM_FILE_UPLOAD_SIZE installation setting and
surface it through super admin and global config payloads
- apply the configurable limit to attachment validations and shared
upload helpers on dashboard and widget
- introduce a reusable helper with unit tests for parsing the limit and
extend attachment specs for configurability
------
[Codex
Task](https://chatgpt.com/codex/tasks/task_e_6912644786b08326bc8dee9401af6d0a)
---------
Co-authored-by: Sivin Varghese <[email protected]>
Co-authored-by: iamsivin <[email protected]>
Created the possibility to send audio as an attachment via the dashboard.
The channels that can send audio are the same channels that can send any type of attachment.
Used RecordRTC (https://github.com/muaz-khan/RecordRTC) to capture the audio and Wavesurfer (https://github.com/katspaugh/wavesurfer.js) to display the audio waves.
RecordRTC can be used to record videos if necessary.
Fixes#1973
