* fpspreadsheet: use buffered streams for performance



git-svn-id: http://svn.code.sf.net/p/lazarus-ccr/svn@3623 8e941d3f-bd1b-0410-a28a-d453659cc2b4
* fpspreadsheet: cosmetic (comments)



git-svn-id: http://svn.code.sf.net/p/lazarus-ccr/svn@3624 8e941d3f-bd1b-0410-a28a-d453659cc2b4