Convert PPT to PPTX in bulk.
Large PPT files are supported.

Max size: 200 MB per file

You can convert PPT Learn more about PPT files to


How to convert PPT to PPTX?

You can convert PPT to PPTX with MConverter in three easy steps:
  1. Choose PPT files from your device
    At the top of this page, drag and drop your PPTs.
    You can also click to select PPT files using your operating system's file chooser.
    Another method is to press Ctrl+V to paste a PPT file you have copied to clipboard.
  2. Click or tap on PPTX from the list of target formats
    Alternatively, you can use the search field to quickly find the format you need, whether it's PPTX or something else.
  3. Download your PPTX files, after MConverter has finished processing them
    There's an option to automatically download the converted PPTX files, so you don't have to press the download icon for each PPTX.

About the formats

Extension ppt
Category Document/Office file formats
Developed by Microsoft
Mime type application/


Presentation designed for Microsoft Office PowerPoint 2003 and older.
Extension pptx
Category Document/Office file formats
Developed by Microsoft
Mime type application/vnd.openxmlformats-officedocument.presentationml.presentation


PPTX files are PowerPoint Presentations, compatible with versions of Microsoft Office 2007 and later. To open a PPTX file with Microsoft Office 2003 or earlier, convert it to PPT.

Common questions about converting PPT to PPTX

Can I convert PPT to PPTX in bulk?

Yes, MConverter supports batch converting of multiple PPTs to PPTX's simultaneously. You can even drag and drop folders containing PPTs to convert to PPTX.
Pasting PPT files and folders copied in the clipboard also works: use Ctrl+V.

Can I convert a PPT file to PPTX, if its size is 1 GB?

Yes, with MConverter Premium you can convert big PPTs, up to 1 gigabyte each.
The free version lets you convert files up to 200 MB. If you need to convert PPT files over 200 megabytes, try MConverter Premium.

Is converting PPTs to PPTX safe with MConverter?

Yes, we encrypt your connection using industry standards. Plus, your PPT files are only accessible by you. 24 hours after the conversion completes, they are automatically deleted from MConverter’s servers. You can also delete your PPTs and other converted files immediately after finishing the conversion by clicking the bin icon.
Join others who have trusted us to convert over 2,171,828 files so far.

How long does it take to convert PPT to PPTX?

For most documents, the wait may be a minute or so. However, MConverter also supports converting larger documents, meaning that it could take a while (up to over an hour, for example).
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