25 KB ODT sample
An ODT file of exactly 25,600 bytes. It is a valid OpenDocument Text file, generated by this site. Compare its checksum and test it with the parser used by your application. Use it wherever you need a 25 KB sample, test or dummy ODT file.
Download
sample-odt-25kb.odt
25 KB25,600 bytes
Download 25 KB ODTCreated in your browser in a few seconds, then checked against the SHA-256 checksum. The file is not uploaded anywhere. No sign-up.
- Type
- application/vnd.oasis.opendocument.text
- SHA-256
5b5c1d2586fff7d8695e3cb996d8f02bc776d6c078b0387da440d67162a6841c- Delivery
- Created in your browser from static generator assets (how it works).
What is in this file
An OpenDocument text document with a title and 745 sections of headings, paragraphs and lists. Text in the document description (meta.xml) brings the file to the exact size.
| Sections | 745 |
|---|---|
| Images | None |
| ODF version | 1.3 |
| Macros | None |
| Container | ZIP (OpenDocument package) |
First bytes of the file
The first 64 bytes of sample-odt-25kb.odt as a hex dump: offset, bytes, then the same bytes as text. The ODT signature is 50 4B 03 04.
00000000 50 4b 03 04 0a 00 00 00 00 00 00 00 21 5c 5e c6 |PK..........!\^.|
00000010 32 0c 27 00 00 00 27 00 00 00 08 00 00 00 6d 69 |2.'...'.......mi|
00000020 6d 65 74 79 70 65 61 70 70 6c 69 63 61 74 69 6f |metypeapplicatio|
00000030 6e 2f 76 6e 64 2e 6f 61 73 69 73 2e 6f 70 65 6e |n/vnd.oasis.open|Preview
ODT files cannot be shown in a browser. Download the file and open it in an application that reads ODT, such as LibreOffice Writer and Apache OpenOffice.
Where 25 KB matters
A 25,600-byte file: the size of a small web image or a short document. These are the default limits a file of this size is useful for testing:
| System | Limit | Note |
|---|---|---|
| TCP initial congestion window | About 14.6 KB (10 segments) | 25 KB needs at least two flights of packets on a new connection. |
| Base64 encoding | Adds 33 percent | A 25 KB file becomes about 34 KB inside JSON or an email. |
Use this file for
- Checking thumbnail and icon handling
- Verifying MIME detection of ZIP-based formats
- Testing text extraction and indexing
Testing notes for ODT
- Layout rarely survives a round trip through Word unchanged: fonts, numbering and tables are the usual casualties.
- Reading the type from the mimetype entry only works if that entry comes first and is not compressed. Tools that re-zip a document tend to break both rules, and strict readers then reject the file.
Technical details
| File name | sample-odt-25kb.odt |
|---|---|
| Format | ODT (OpenDocument Text) |
| Extension | .odt |
| MIME type | application/vnd.oasis.opendocument.text |
| Size | 25,600 bytes (25 KB) |
| Kind | Binary |
| Signature | 50 4B 03 04 |
| SHA-256 | 5b5c1d2586fff7d8695e3cb996d8f02bc776d6c078b0387da440d67162a6841c |
| 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 | Documents |
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-odt-25kb.odt # Linux
shasum -a 256 sample-odt-25kb.odt # macOSOn Windows, run Get-FileHash sample-odt-25kb.odt -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 25 KB?
- Yes. It is 25,600 bytes, which is 25 KB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
- What is inside the 25 KB ODT file?
- An OpenDocument text document with a title and 745 sections of headings, paragraphs and lists. Text in the document description (meta.xml) brings the file to the exact size.
- Will the ODT samples open in Microsoft Word?
- Yes. Word has opened OpenDocument text files since Word 2007 Service Pack 2. The samples use only headings, paragraphs, a list, a table and one image.