mime/java-res/android.mime.types

###############################################################################
#
# Android-specific MIME type <-> extension mappings
#
# Each line below defines a mapping from one MIME type to the first of the
# listed extensions, and from listed extension back to the MIME type.
# A mapping overrides any previous mapping _from_ that same MIME type or
# extension (put() semantics), unless that MIME type / extension is prefixed with '?'
# (putIfAbsent() semantics).
#
#
###############################################################################
#
# EXAMPLES
#
# A line of the form:
#
#    ?mime ext1 ?ext2 ext3
#
# affects the current mappings along the lines of the following pseudo code:
#
#    mimeToExt.putIfAbsent("mime", "ext1");
#    extToMime.put("ext1", "mime");
#    extToMime.putIfAbsent("ext2", "mime");
#    extToMime.put("ext3", "mime");
#
# The line:
#
#     ?text/plain txt
#
# leaves any earlier mapping for "text/plain" untouched, or maps that MIME type
# to the file extension ".txt" if there is no earlier mapping. The line also
# sets the mapping from file extension ".txt" to be the MIME type "text/plain",
# regardless of whether a previous mapping existed.
#
###############################################################################


# File extensions that Android wants to override to point to the given MIME type.
#
# After processing a line of the form:
# ?<mimeType> <extension1> <extension2>
# If <mimeType> was not already mapped to an extension then it will be
# mapped to <extension1>.
# <extension1> and <extension2> are mapped (or remapped) to <mimeType>.

?application/epub+zip epub
?application/lrc lrc
?application/pkix-cert cer
?application/rss+xml rss
?application/sdp sdp
?application/smil+xml smil
?application/ttml+xml ttml dfxp
?application/vnd.android.ota ota
?application/vnd.apple.mpegurl m3u8
?application/vnd.ms-pki.stl stl
?application/vnd.ms-powerpoint pot
?application/vnd.ms-wpl wpl
?application/vnd.stardivision.impress sdp
?application/vnd.stardivision.writer vor
?application/vnd.youtube.yt yt
?application/x-android-drm-fl fl
?application/x-flac flac
?application/x-font pcf
?application/x-mobipocket-ebook prc mobi
?application/x-mpegurl m3u m3u8
?application/x-pem-file pem
?application/x-pkcs12 p12 pfx
?application/x-subrip srt
?application/x-webarchive webarchive
?application/x-webarchive-xml webarchivexml
?application/x-x509-server-cert crt
?application/x-x509-user-cert crt

?audio/3gpp 3ga 3gpp
?audio/aac-adts aac
?audio/ac3 ac3 a52
?audio/amr amr
?audio/imelody imy
?audio/midi rtttl xmf
?audio/mobile-xmf mxmf
?audio/mp4 m4a m4b m4p f4a f4b f4p
?audio/mpegurl m3u
?audio/sp-midi smf
?audio/x-matroska mka
?audio/x-pn-realaudio ra
?audio/x-mpeg mp3

?image/bmp bmp
?image/gif gif
?image/heic heic
?image/heic-sequence heics
?image/heif heif hif
?image/heif-sequence heifs
?image/avif avif
?image/ico cur
?image/webp webp
?image/x-adobe-dng dng
?image/x-fuji-raf raf
?image/x-icon ico
?image/x-nikon-nrw nrw
?image/x-panasonic-rw2 rw2
?image/x-pentax-pef pef
?image/x-samsung-srw srw
?image/x-sony-arw arw

?text/comma-separated-values csv
?text/plain diff po
?text/rtf rtf
?text/text phps
?text/xml xml
?text/x-vcard vcf

?video/3gpp2 3gpp2 3gp2 3g2
?video/3gpp 3gpp
?video/avi avi
?video/m4v m4v
?video/mp4 m4v f4v mp4v mpeg4
?video/mp2p mpeg
?video/mp2t m2ts mts
?video/mp2ts ts
?video/vnd.youtube.yt yt
?video/x-webex wrf

# Optional additions that should not override any previous mapping.

?application/x-wifi-config ?xml

# Special cases where Android has a strong opinion about mappings, so we
# define them very last and make them override in both directions (no "?").
#
# Lines here are of the form:
# <mimeType> <extension1> <extension2> ...
#
# After processing each line,
#   <mimeType> is mapped to <extension1>
#   <extension1>, <extension2>, ... are all mapped to <mimeType>
# This overrides any mappings for this <mimeType> / for these extensions
# that may have been defined earlier.

application/pgp-signature pgp
application/x-x509-ca-cert crt der
audio/aac aac adts adt
audio/basic snd
audio/flac flac
audio/midi rtx
audio/mpeg mp3 mp2 mp1 mpa m4a m4r
audio/x-mpegurl m3u m3u8
image/jpeg jpg
image/x-ms-bmp bmp
text/plain txt
text/x-c++hdr hpp
text/x-c++src cpp
video/3gpp 3gpp
video/mpeg mpeg mpeg2 mpv2 mp2v m2v m2t mpeg1 mpv1 mp1v m1v
video/quicktime mov
video/x-matroska mkv