PicoFiler Nanana
Install PicoFiler with WinGet
winget install --id=Nanana.PicoFiler -e PicoFiler shows a folder tree, a file list and thumbnails side by side so you can browse and organize large image collections. It opens ZIP, 7z, RAR and LZH archives like folders without extracting them, supports a two-page (right-to-left) spread view for manga, and can search the whole PC by name. An optional indexing service keeps search instant; the index stays on the PC. The user interface is in Japanese.