ACD/ChemSketch drawing
File type: Vector graphic file
Files with the sk2 file extension are native drawings created by ACD/ChemSketch.
An .sk2 file stores a vector drawing made with the chemical drawing software.
File type category:
Vector graphic file
Date updated: October 6, 2026
The sk2 file extension is associated with ACD/ChemSketch, a chemically intelligent drawing interface for Microsoft Windows developed by Advanced Chemistry Development.
An .sk2 file can contain chemical structures and other elements of a ChemSketch drawing, including bonds, labels, and graphical annotations. It is the software's native vector drawing format and is intended for continued editing in ChemSketch.
Open an .sk2 file with ACD/ChemSketch on Microsoft Windows. Use the program's Open command to load the drawing for viewing or editing.
Use ACD/ChemSketch to save or export an .sk2 file to one of the graphic or document formats supported by the installed version. Exporting may preserve the appearance of the drawing but not all of its editable chemical information.
Software applications that can open sk2 files:
Microsoft Windows
Software applications that can edit sk2 files:
Microsoft Windows
Software capable of saving sk2 files:
Microsoft Windows
Programs for viewing sk2 files:
Microsoft Windows
Software apps that create sk2 files:
Microsoft Windows
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