File Formats

OAK Trust (Digital Repository) accepts work in any digital format; however, submission in a file format listed below is strongly encouraged. The formats listed below are considered relatively stable and therefore facilitate long-term preservation efforts. These formats exhibit all or many of the following characteristics: open documentation; support across a range of software platforms; wide adoption; no compression (or lossless compression); no embedded files or embedded programs/scripts; and non-proprietary format. For additional information on the Repository’s preservation strategy, please see the Preservation Policy.

Formats

Preferable File Extensions

Acceptable File Extensions

Textual

PDF/A

TXT, XML-based formats, PDF (highest quality available)

Images

 

 

Raster

TIF

JP2 (lossless), JPG (if best copy), DNG

Vector

SVG

DXF

3-D

STL, OBJ

DAE (COLLADA), IGES, STP

Audio

WAV (24-bit, 96 kHz), BWF

AIFF, FLAC, AAC

Video

AVI

MP4, MOV

Datasets

 

 

Data

CSV

HDF5, DBF

Geospatial

Shapefile, KML/KMZ

No other formats accepted

Websites 

WARC

No other formats accepted