User selects a tar file of Star Office files to upload for processing from a HTML form...

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... these are validated by a Perl CGI script and then placed in a directory on the web server for conversion...

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... the CGI script performs a system call to the star office macro to convert all files in this directory...

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... the star office macro creates .html and .pdf output from these files...

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... files are uploaded to website in the new (correct) file format.