diff --git a/docs/SEGA_PCB_CODES/source.txt b/docs/SEGA_PCB_CODES/README.txt
similarity index 100%
rename from docs/SEGA_PCB_CODES/source.txt
rename to docs/SEGA_PCB_CODES/README.txt
diff --git a/tools/Crackproof/Umamusume64/Umamusume64.txt b/tools/Crackproof/Umamusume64/README.txt
similarity index 100%
rename from tools/Crackproof/Umamusume64/Umamusume64.txt
rename to tools/Crackproof/Umamusume64/README.txt
diff --git a/tools/Filesystem/SEGA_Decryption_Guide.txt b/tools/Filesystem/README.txt
similarity index 100%
rename from tools/Filesystem/SEGA_Decryption_Guide.txt
rename to tools/Filesystem/README.txt
diff --git a/tools/Filesystem/calculate_iv/calculate_iv.txt b/tools/Filesystem/calculate_iv/README.txt
similarity index 100%
rename from tools/Filesystem/calculate_iv/calculate_iv.txt
rename to tools/Filesystem/calculate_iv/README.txt