User:Spaceghost69

This is the account of John McMahon, Founder of Extentech Inc. A San Francisco, California-based software company that published the ExtenXLS and open source OpenXLS Java Spreadsheet SDKs and the Sheetster Web Based Spreadsheet.

Founded in 1999, Extentech Inc. published Java Spreadsheet developer tools that allowed Java programmers to add Excel-compatible functionality to their applications.

John sold Extentech Inc. to Infoteria a Tokyo/based public company in 2012, then went on to create Starter Inc, a platform and business services firm.