1 Revenues do not include HSBC Insurance Brokers Ltd.; purchase completed April 2010. Higosoft SWF Converter for Mac is a handy Mac SWF Converter to convert SWF into high quality video and audio formats. You can convert SWF to videos like FLV, MOV, MPEG, AVI, MP4, WMV, DV, 3GP, MPEG-2, etc with it. The dimensions of the inputs must be identical, with the exception of broadcasting. Hi Alex,It is only referred to as writing an option if your position is short. In your case, you already have a long position so to sell an option is just closing out that position.