Convert Excel VBA based spreadsheet to OpenOffice Calc Basic

I have a spreadsheet in Excel 2011 for Mac used which I use to track client bookings. The spreadsheet is based on VBA macros, but I need it to work in OpenOffice Calc so that other members of my team can access it. In terms of size, the truckler spreadsheet has 10 tabs. Please only bid if you have strong Excel VBA and OpenOffice macro skills, and please state what experience you have of similar jobs with your proposal.