ARJ is a document format: it stores data in the ARJ format. Z is a document format that stores data in the Z 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. Converting between these two formats is common when the source application does not support Z natively or when the target platform only accepts Z. 1converter processes this conversion server-side using open-source tools. Files are transferred over HTTPS, converted on secure cloud servers, and automatically deleted after 24 hours.