PPTX to PPT - Convert document online

(DOC, DOCX, RTF, TXT, ODT, XLS, XLSX, CSV, ODS, PPT, PPTX, ODP, HTML, XPS etc.)
Conversion Results:
# Output File Source File Action

Steps:

1. Click "Choose Files" button to select multiple files on your computer. You can also click the dropdown button to choose online file from URL, Google Drive or Dropbox. A target format can only be converted from certain document formats. For example: It can convert DOC to DOCX, but it can't convert DOC to XLSX.

2. Choose a target document format. The target document format can be PDF, DOC, DOCX, XLS, XLSX, PPT, PPTX, HTML, TXT, CSV, RTF, ODT, ODS, ODP, XPS or OXPS. When choosing a target format, it will list what source formats can be converted to the target format.

3. Click "Convert Now!" button to start batch conversion. The output files will be listed in the "Conversion Results" section. Click icon to show file QR code or save file to online storage services such as Google Drive or Dropbox.

PPTX vs PPT:
Name PPTX PPT
Full name Office Open XML Presentation Microsoft PowerPoint Binary File Format
File extension .pptx, .pptm .ppt
MIME application/vnd.-openxmlformats-officedocument.-presentationml.-presentation application/vnd.ms-powerpoint
Developed by Microsoft Microsoft
Type of format Presentation Presentation
Introduction The Office Open XML file formats are a set of file formats that can be used to represent electronic office documents. There are formats for word processing documents, spreadsheets and presentations as well as specific formats for material such as mathematical formulae, graphics, bibliographies etc. Microsoft PowerPoint up until 2007 version used a proprietary binary file format called PowerPoint Binary File Format (.PPT) as its primary format. In Microsoft Office 2007 the binary file formats were replaced as the default format by the new XML based Office Open XML formats.
Technical details The Office Open XML file formats are a set of file formats that can be used to represent electronic office documents. There are formats for word processing documents, spreadsheets and presentations as well as specific formats for material such as mathematical formulae, graphics, bibliographies etc. The binary format specification has been available from Microsoft on request, but since February 2008 the .ppt format specification can be freely downloaded.
Associated programs Microsoft Office, LibreOffice, Kingsoft Office, Google Docs. Microsoft Office, LibreOffice, Kingsoft Office, Google Docs.
Sample file sample.pptx sample.ppt
Wikipedia PPTX on Wikipedia PPT on Wikipedia