diff --git a/app/src/main/java/protect/card_locker/ImportExportActivity.java b/app/src/main/java/protect/card_locker/ImportExportActivity.kt
similarity index 100%
rename from app/src/main/java/protect/card_locker/ImportExportActivity.java
rename to app/src/main/java/protect/card_locker/ImportExportActivity.kt
diff --git a/app/src/test/java/protect/card_locker/ImportExportActivityTest.java b/app/src/test/java/protect/card_locker/ImportExportActivityTest.kt
similarity index 100%
rename from app/src/test/java/protect/card_locker/ImportExportActivityTest.java
rename to app/src/test/java/protect/card_locker/ImportExportActivityTest.kt