50 MB PPTX sample
A PPTX file of exactly 52,428,800 bytes. It is a valid PowerPoint presentation (Office Open XML) file, generated by this site. Compare its checksum and test it with the parser used by your application. Use it wherever you need a 50 MB sample, test or dummy PPTX file.
Download
sample-pptx-50mb.pptx
50 MB52,428,800 bytes
Download 50 MB PPTXCreated in your browser and, in browsers that can stream to disk, sent straight to your downloads list; this can take a minute. No sign-up.
- Type
- application/vnd.openxmlformats-officedocument.presentationml.presentation
- SHA-256
25bf5ddc20ab835c0f3c8fb3012503e96c0555caec96161093631a17931bebf7- Delivery
- Created in your browser from static generator assets (how it works).
What is in this file
A five-slide deck with a title slide, bullets, a table and speaker notes, plus one embedded test-card PNG of 52,394,134 bytes, stored uncompressed and sized so that the presentation is exactly 52,428,800 bytes. Padding of 42,954,150 bytes in a private ancillary PNG chunk ("spAd", skipped by decoders) inside the image makes up the rest.
| Slides | 5 |
|---|---|
| Contents | Title, bullet, picture and table slides, with speaker notes |
| Embedded image | PNG, 2,048 × 1,536 px |
| Macros | None |
| Container | ZIP (Office Open XML) |
First bytes of the file
The first 64 bytes of sample-pptx-50mb.pptx as a hex dump: offset, bytes, then the same bytes as text. The PPTX signature is 50 4B 03 04.
00000000 50 4b 03 04 14 00 00 00 08 00 00 00 21 5c 20 37 |PK..........!\ 7|
00000010 1d 4f fa 01 00 00 8b 10 00 00 13 00 00 00 5b 43 |.O............[C|
00000020 6f 6e 74 65 6e 74 5f 54 79 70 65 73 5d 2e 78 6d |ontent_Types].xm|
00000030 6c cd 98 4d 6f 9b 40 10 86 ef fd 15 88 0b 87 ca |l..Mo.@.........|Preview
PPTX files cannot be shown in a browser. Download the file and open it in an application that reads PPTX, such as Microsoft PowerPoint.
Where 50 MB matters
A 52,428,800-byte file: exactly the size at which Git hosting on GitHub starts warning about large files, and about the limit for a zipped AWS Lambda package uploaded directly.
Use this file for
- Measuring download speed from your own server or CDN
- Verifying size limits with media-heavy files
- Testing presentation uploads in learning and meeting software
Testing notes for PPTX
- Converters differ in font substitution; the same deck can reflow when a font is missing.
- Presentation size is dominated by embedded media, so limits tuned for documents are often too small for real decks.
Technical details
| File name | sample-pptx-50mb.pptx |
|---|---|
| Format | PPTX (PowerPoint presentation (Office Open XML)) |
| Extension | .pptx |
| MIME type | application/vnd.openxmlformats-officedocument.presentationml.presentation |
| Size | 52,428,800 bytes (50 MB) |
| Kind | Binary |
| Signature | 50 4B 03 04 |
| SHA-256 | 25bf5ddc20ab835c0f3c8fb3012503e96c0555caec96161093631a17931bebf7 |
| Created | 2026-10-23 |
| Validation | See the listed size and SHA-256. Small downloads are checked in the browser; verify streamed downloads manually. A hash match does not prove parser compatibility. |
| Preview | Not available for this file; details only |
| Source | Generated in your browser by this site's generator; not copied from elsewhere |
| Licence | Free to use, modify and redistribute (terms) |
| Category | Presentations |
Check the stated structure and checksum against your application requirements. As with any download, scan the file with your own security tools before opening it. How files are made and checked
Verify your copy
This file is created in your browser, so it has no direct URL for curl or wget. The generator is designed to produce reproducible bytes. After saving, compare the checksum with the SHA-256 value above.
sha256sum sample-pptx-50mb.pptx # Linux
shasum -a 256 sample-pptx-50mb.pptx # macOSOn Windows, run Get-FileHash sample-pptx-50mb.pptx -Algorithm SHA256 in PowerShell. For scripts and pipelines, save the file once and keep your own copy.
Related files
Questions about this file
- Is this file exactly 50 MB?
- Yes. It is 52,428,800 bytes, which is 50 MB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
- What is inside the 50 MB PPTX file?
- A five-slide deck with a title slide, bullets, a table and speaker notes, plus one embedded test-card PNG of 52,394,134 bytes, stored uncompressed and sized so that the presentation is exactly 52,428,800 bytes. Padding of 42,954,150 bytes in a private ancillary PNG chunk ("spAd", skipped by decoders) inside the image makes up the rest.
- What is on the slides?
- Five slides: a title, a bulleted list with speaker notes, a picture, a table and a closing slide.
Opening large files
Keep this tab open until your browser reports that the download is complete. Check the saved file size against the byte count on this page; a partial download may not open. For ordinary viewer tests, start with a 5 MB or 10 MB sample. Large samples are stress-test fixtures and may exceed the memory or file-size limits of your viewer.