An IQMOL file is an archive created by IQmol, a molecule visualization program. It contains information about a molecule model, which includes 3D coordinates that specify the atoms and bonds that make up the structure of a molecule.

IQMOL file open in IQmol 2.9 To open an IQMOL using IQmol, select File → Open. To create an IQMOL using IQmol, select File → Save As and choose "IQmol Archive" from the format dropdown menu. While IQMOL files are typically opened using IQmol, they can also be opened by a text editor since the files are saved in plain text. Some text editors that can be used include Microsoft Notepad and Apple TextEdit. NOTE: IQmol is an open source program used to edit and visualize molecules.