 Laid down on 19 December 1941 by the Jakobson Shipyard, Inc., Oyster Bay, Long Island, New York, launched on 10 May 1942, and commissioned on 11 December 1942.The ship was reclassified as a submarine chaser, PC-1598 on 1 June 1944.USS Excel arrived at Norfolk, Virginia, on 21 January 1943 for minesweeping exercises in the Virginia Capes, then sailed to Portland, Maine, where she based for patrol and minesweeping duty from 15 March 1943 to 3 February 1944.