The LWP file format stores data in the LWP format. Converting to PPTX produces a document file that stores slides, animations, embedded media, and speaker notes as zipped XML in the Microsoft PowerPoint format. This conversion changes the file's encoding, compression method, and supported feature set. Text content, headings, and basic formatting are transferred; complex features such as macros or embedded objects may not translate fully. This makes PPTX the practical choice when the destination system requires it or when the target format offers better compatibility or compression. 1converter runs this conversion on the server: your file is uploaded encrypted over HTTPS, converted using trusted open-source libraries, and the output is held for 24 hours before automatic deletion.