Choose a cloud service provider:
FreeFileConvert uses tuned encoding for PPTX to RAS conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.
Upload PPTX files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized RAS results on any device you rely on.
Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent RAS audio with dependable progress tracking.
The .pptx filename extension is a compressed ZIP archive with an xml directory structure. The format supports macros, charts, embedded media files, and images. It is specified in the open standard ISO/IEC 29500-1:2012. A free compatibility update allows older versions of Microsoft Office PowerPoint such as Office 2003 to open .pptx documents.
The .ras file extension format extends support to 1, 8, 24 and 32 bits per pixel with easy compression and decompression of the images done with the help of the RLE compression technique which is compatible with other imaging programs. Transparency is not supported in this format. The MIME commands used for this application are image/cmu-master or application/x-cmu-raster.
Upload your presentation file in the PPTX format from your device, Dropbox, or Google Drive.
Select RAS as the output format and click Convert. Adjust optional settings if needed.
Download the converted image file. Each file stays available for up to 5 downloads.