Optimize and convert your document files (DOCX, XLSX, PPTX, DOCM, XLSM, XLSB, PPTM — MS Office formats) in smaller size! Program optimizes your document file to new one with «_optimized» name ending (source file will remain intact). Maximum compression for office files without quality loss — up to 10-30%! Full compatible with original office format. The document is reduced by repacking the contents with a stronger compression algorithm. Batch processing of files (drag-n-drop). Compression mode: good (faster) or best (slowly). The main difference between Ultra7z Docx/xlsx/pptx Optimizer and other similar repackaging programs is that it saves quality of all pictures inside your documents. Full stats — saved disk space (Mb) total and for each archive in the list.