i bought indesign cs5 , using internship; however, boss still using cs3 , said not open or edit indesign file sent her. looked under "export" see if there option , did not find anything. using mac , believe using p.c., also, when last sent file, still using free trial - of make difference? please help! this has been covered endless times anyway, i'll again! you have export idml file cs5, open idml in cs4, export inx file there open in cs3 , save indd. sorry there no way round it, fullstop, end of story etc etc. if using cs3 , you're using cs5 there no route between them unless have cs4, , route littered pitfalls! here rather long discussion / rant on subject. ultimately she'd have upgrade, or see if buy cs3 or 4 version is hard legitimate copy, way buy off know , people aren't selling because they're upgrading. best news last, there short term fix, go this guys blog , can download trial version of cs4 last month. More...