diff --git a/Fuzzing/file-extensions-upper-case.txt b/Fuzzing/file-extensions-upper-case.txt
new file mode 100644
index 00000000..ac9793b5
--- /dev/null
+++ b/Fuzzing/file-extensions-upper-case.txt
@@ -0,0 +1,769 @@
+3DS
+3G2
+3GP
+3GX
+3MF
+4TH
+7Z
+A
+AAC
+ACCDB
+ACCDE
+ACCDR
+ACCDT
+ACCFT
+ADT
+ADTS
+ADX
+ADZ
+AGDA
+AGR
+AHK
+AI
+AIF
+AIFC
+AIFF
+AIO
+AMF
+AMG
+AML
+AMLX
+AMPL
+AMR
+AMV
+ANI
+ANN
+APE
+APK
+ARC
+ART
+ASAX
+ASC
+ASCX
+ASF
+ASHX
+ASM
+ASP
+ASPX
+ASX
+AT3
+ATG
+AVI
+AVIF
+AWK
+AX
+AXF
+B
+BAK
+BAR
+BAS
+BAT
+BDF
+BDT
+BEAM
+BIN
+BLEND
+BM3
+BMP
+BPS
+BZ2
+C
+C++
+C--
+C32
+CAB
+CBL
+CBT
+CC
+CD
+CDA
+CDF
+CDP
+CDR
+CER
+CGM
+CHM
+CHO
+CIA
+CIF
+CLASS
+CMD
+CMOD
+CN1
+COB
+COE
+COM
+COMPILE
+CPC
+CPIO
+CPL
+CPP
+CPY
+CR2
+CR3
+CRAFT
+CRAI
+CRT
+CS
+CSO
+CSPROJ
+CSS
+CSV
+CUR
+D
+DAA
+DAE
+DAF
+DART
+DAT
+DATS
+DBA
+DBC
+DBG
+DEB
+DICOM
+DIF
+DIRED
+DIVX
+DLL
+DMG
+DMP
+DN
+DNG
+DOC
+DOCM
+DOCX
+DOT
+DOTX
+DPX
+DRC
+DSC
+DTA
+DTD
+DVC
+DWF
+DWG
+DXF
+E
+E##
+E00
+E2D
+E57
+EBD
+EC
+ECC
+EDE
+EDF
+EFI
+EIS
+EL
+ELC
+ELF
+EMAIL
+EMAKER
+EMF
+EML
+EMZ
+EOT
+EP
+EPA
+EPS
+EPUB
+ERL
+ES6
+ESCPCB
+ESCSCH
+ESD
+ETL
+EU4
+EVT
+EVTX
+EX
+EXE
+EXP
+EXS
+F
+F01
+F03
+F08
+F18
+F4
+F4V
+F77
+F90
+F95
+FA
+FAA
+FACTOR
+FASTA
+FASTQ
+FB
+FB2
+FBX
+FEN
+FF
+FFN
+FIT
+FITS
+FLAC
+FLAME
+FLP
+FLV
+FNA
+FNI
+FNX
+FODG
+FODP
+FODS
+FODT
+FOR
+FQL
+FRAG
+FREQ
+FRM
+FRQ7
+FS
+FTH
+G4
+GBR
+GDF
+GDT
+GED
+GGB
+GIF
+GM9
+GMI
+GMK
+GML
+GO
+GPX
+GREXLI
+GRP
+GSF
+GTF
+GV
+GZ
+H
+H!
+H++
+H--
+HA
+HACK
+HAR
+HDI
+HDMP
+HH
+HOF
+HOI4
+HPP
+HTA
+HTM
+HTML
+HUM
+HXX
+ICC
+ICE
+ICL
+ICO
+IFC
+IGC
+IGES
+IMG
+INFO
+INI
+IO
+IPT
+IRX
+ISO
+IT
+J2C
+JAR
+JAV
+JAVA
+JBIG
+JL
+JNLP
+JP2
+JPE
+JPEG
+JPG
+JS
+JSON
+JSP
+JXL
+KEY
+KLC
+KML
+KMZ
+KO
+KRA
+KSH
+KT
+KV
+LABEL
+LBR
+LDB
+LDT
+LHA
+LISP
+LL
+LM
+LNK
+LRC
+LUA
+LZ
+M
+M2TS
+M3U
+M3U8
+M4A
+M4P
+M4R
+M4V
+M64
+MCF
+MD
+MDB
+MDF
+MDG
+MDI
+MDL
+MDS
+MEX
+MGF
+MHT
+MID
+MIDI
+MKA
+MKV
+MM
+MNT
+MOBI
+MOD
+MODULES
+MOL
+MOL2
+MOP
+MOV
+MP2
+MP3
+MP4
+MPA
+MPC
+MPD
+MPEG
+MPG
+MSAV
+MSC
+MSDL
+MSF
+MSG
+MSI
+MSO
+MSSTYLES
+MSU
+MTS
+MUI
+MXF
+MYD
+MYI
+NB
+NC
+NCD
+NDS
+NEF
+NEU
+NF
+NFO
+NIM
+NMF
+NPR
+NRO
+NRW
+NS1
+NSA
+NSF
+NSV
+NUMBERS
+NWD
+NWF
+O
+OBJ
+OBS
+OCX
+ODB
+ODF
+ODG
+ODP
+ODS
+ODT
+OGA
+OGG
+OGV
+OGX
+OPUS
+ORG
+OSC
+OSK
+OSM
+OST
+OSZ
+OTB
+OTF
+OTG
+OTL
+OTP
+OTS
+OTT
+OV2
+OWL
+OXT
+P
+P10
+P12
+PACK
+PAGES
+PAK
+PAL
+PAM
+PAR
+PAR2
+PAS
+PAX
+PBLIB
+PBO
+PCL
+PCS
+PCX
+PDB
+PDE
+PDF
+PDI
+PDM
+PDN
+PDS
+PEM
+PET
+PFA
+PFAM
+PFB
+PFC
+PFM
+PFX
+PGN
+PHF
+PHN
+PHP
+PHP3
+PHP4
+PHR
+PHY
+PHZ
+PI2
+PIE
+PIR
+PIT
+PK3
+PKA
+PKG
+PKL
+PL
+PLI
+PLR
+PLS
+PM
+PMA
+PNG
+POM
+POT
+POTM
+POTX
+PPAM
+PPEG
+PPS
+PPSM
+PPSX
+PPT
+PPTM
+PPTX
+PRJ
+PROTO
+PRP
+PS
+PS1
+PSD
+PSDC
+PSM1
+PSPPALETTE
+PST
+PTF
+PTS
+PTX
+PUB
+PUP
+PY
+QFX
+QIF
+QLC
+QOI
+QT
+QTVR
+R
+R00
+R01
+R2D
+R3D
+R8P
+RAD
+RAL
+RAM
+RAP
+RAR
+RAS
+RAW
+RB
+RC
+RDP
+RDS
+RES
+RKT
+RM
+RMD
+RMVB
+ROB
+ROL
+RPM
+RS
+RSL
+RSLF
+RSLS
+RSS
+RST
+RTF
+RUN
+S
+S7I
+SAIF
+SASS
+SAT
+SAV
+SB
+SB2
+SB3
+SBH
+SBV
+SBX
+SCALA
+SCM
+SCR
+SCSS
+SD7
+SDF
+SDS
+SDTS
+SEC
+SED
+SEQ
+SF
+SFB
+SFX
+SH
+SHAR
+SHTM
+SHTML
+SHX
+SIG
+SIT
+SL
+SLDM
+SLDX
+SM
+SMCLVL
+SMK
+SNO
+SO
+SPF
+SPIFF
+SPIN
+SPS
+SPT
+SPV
+SPX
+SPZ
+SQL
+SSC
+ST
+STC
+STD
+STI
+STK
+STL
+STM
+STO
+STP
+STW
+SUR
+SVC
+SVG
+SWF
+SWG
+SWIFT
+SWM
+SXC
+SXD
+SXG
+SXI
+SXM
+SXP
+SXW
+SYLK
+SYMBOLICLINK
+SYS
+TAK
+TAR
+TAZ
+TB2
+TBZ
+TBZ2
+TC
+TER
+TGA
+TGT
+TGZ
+THM
+TIF
+TIFF
+TLB
+TLZ
+TMP
+TORRENT
+TS
+TSV
+TTC
+TTF
+TXT
+TXZ
+TZ2
+TZST
+UI
+UMP
+UNV
+UOS
+UOT
+UPS
+URL
+USDZ
+UST
+UT!
+UXF
+V
+V4P
+VB
+VBOX
+VBOX-EXTPACK
+VBPROJ
+VBR
+VBS
+VBX
+VC6
+VCLS
+VDA
+VDI
+VDW
+VDX
+VFD
+VI
+VMCZ
+VMDK
+VMG
+VMX
+VOB
+VPK
+VPM
+VPP
+VPR
+VQM
+VRB
+VS
+VSD
+VSDM
+VSDX
+VSM
+VSQ
+VSQX
+VSS
+VSSM
+VST
+VSTM
+VSTO
+VSTX
+VSVNBAK
+VTF
+VUE
+VVVVVV
+WAD
+WAV
+WBK
+WEBM
+WEBP
+WITNESS_CAMPAIGN
+WK1
+WK3
+WKS
+WLMP
+WMA
+WMD
+WMDB
+WMF
+WMS
+WMV
+WMZ
+WOS
+WP5
+WPD
+WPS
+WTX
+X
+X3D
+XAR
+XBRL
+XCF
+XDM
+XE
+XEX
+XHTML
+XLA
+XLAM
+XLL
+XLM
+XLS
+XLSB
+XLSM
+XLSX
+XLT
+XLTM
+XLTX
+XM
+XMF
+XML
+XP
+XPL
+XPS
+XSD
+XSF
+XSL
+XSLT
+XSN
+XSPF
+XX
+XXE
+XXX
+XYZ
+XZ
+Y
+YAML
+YML
+Z
+ZIP
+ZRX
+ZS