FileZilla Pro CLI maps a number of file extensions to MIME Types by default.
If you need to modify these mappings change the MIME Types setting.
The MIME type mapping is a list of MIME type to file extension pairs separated by semicolon.
To get the current MIME type mapping:
fzcli> set engine.mimetype_mapping
engine.mimetype_mapping = application/java-archive=jar;application/
˓→javascript=js;application/pdf=pdf;application/rss+xml=rss;application/x-
˓→font-ttf=ttf;application/x-shockwave-flash=swf;application/xml=xml xsl;
˓→application/xslt+xml=xslt;application/zip=zip;binary/octet-stream=bin␣
˓→exe;image/gif=gif;image/jpeg=jpeg jpg jpe;image/png=png;image/
˓→svg+xml=svg;text/css=css;text/html=html htm;text/plain=txt text;
engine.mimetype_mapping = application/java-archive=jar;application/
˓→javascript=js;application/pdf=pdf;application/rss+xml=rss;application/x-
˓→font-ttf=ttf;application/x-shockwave-flash=swf;application/xml=xml xsl;
˓→application/xslt+xml=xslt;application/zip=zip;binary/octet-stream=bin␣
˓→exe;image/gif=gif;image/jpeg=jpeg jpg jpe;image/png=png;image/
˓→svg+xml=svg;text/css=css;text/html=html htm;text/plain=txt text;
To add a new MIME type mapping, for example, video/mp4 to mp4 extension:
fzcli> set engine.mimetype_mapping “application/java-archive=jar;
˓→application/javascript=js;application/pdf=pdf;application/rss+xml=rss;
˓→application/x-font-ttf=ttf;application/x-shockwave-flash=swf;
˓→application/xml=xml xsl;application/xslt+xml=xslt;application/zip=zip;
˓→binary/octet-stream=bin exe;image/gif=gif;image/jpeg=jpeg jpg jpe;image/
˓→png=png;image/svg+xml=svg;text/css=css;text/html=html htm;text/
˓→plain=txt text;video/mp4=mp4”
˓→application/javascript=js;application/pdf=pdf;application/rss+xml=rss;
˓→application/x-font-ttf=ttf;application/x-shockwave-flash=swf;
˓→application/xml=xml xsl;application/xslt+xml=xslt;application/zip=zip;
˓→binary/octet-stream=bin exe;image/gif=gif;image/jpeg=jpeg jpg jpe;image/
˓→png=png;image/svg+xml=svg;text/css=css;text/html=html htm;text/
˓→plain=txt text;video/mp4=mp4”