Aspose.Total Merger is a very easy to use free online app that can be used to combine multiple files and save it in a desired format. The web app has included support for several popular formats such as DOC, DOCX, EMF, EPUB, GIF, HTML, JPEG, JPG, MHTML, OBJ, ODP, ODS, PCL, PDF, PLY, PNG, PPS, PPSM, PPSX, PPT, PPTM, PPTX, PS, PSD, RTF, SVG, SWF, TEXT, TIFF, TXT, XLS, XLSB, XLSM, XLSX, XLT, XML, XPS and many other documents formats. The apps are very easy to use and allow users to select files of their choice and merge them with a single click. Once done you can immediately download the merged document as well as view it or email to someone in your office with ease.