What does flyingmouse-format do?
FlyingMouse Format - A free file format conversion tool for Windows (offline-capable, with built-in FFmpeg/LibreOffice/Poppler/Tesseract). Supports interconversion of images, documents, spreadsheets, PPTs, PDFs, audio/video, and WPS formats, plus OCR and batch conversion. Audio supports only common formats. Author: LaoFeng (LaoFeng). For personal free use only; commercial sale/resale/wrapping is prohibited.