Firefighters were called to a structure fire at the Dollar General on State Route 96 in Farmington on Thursday.
The call came in to 911 around 3 p.m.
Firefighters from Farmington, Victor, Macedon, and Canandaigua were called to the scene.
Initial crews reported smoke coming from the building, then a second alarm was activated.
More than an hour after the fire was reported, state police said crews were still working on tamping down the blaze.