id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	blockedby	blocking	notify_on_close	platform	project
19437	Make it easier to open IHM files with .cif suffixes	Tom Goddard	Tom Goddard	"Brinda Vallat asks if ChimeraX can make it easier to open IHM files with .cif file suffix.


Begin forwarded message:

From: Brinda Vallat
Subject: Re: ChimeraX support for IHMCIF
Date: November 25, 2025 at 5:56:39 AM PST
To: Tom Goddard
Cc: Ben Webb

Hello Tom, 

I was wondering if you have thought about supporting IHM files without the ""format ihm"" argument. 

We have received multiple ""bug reports"" from RCSB.org users about the downloaded mmCIF files not working with ChimeraX. 

We have been telling users about the command line argument. However, it will be useful to have some kind of support.

Please let me know what you and other developers of ChimeraX think about this. 

Thank you,
Brinda
"	enhancement	closed	moderate		Input/Output		fixed		brinda.vallat@… ben@…				all	ChimeraX