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Which file formats should be used?

In order to be able to store data in the long term and use it sustainably, the choice of a suitable file format is of particular importance. As a general rule, make sure that files or formats are not encrypted, compressed, proprietary or patented. Accordingly, prefer open, documented standards.

Recommendations on which file formats should be preferred can be found at RADAR, HU Berlin, the UK Data Service or the Library of Congress, among others.

The following table also provides orientation:

Data type Recommended formats Less suitable or unsuitable formats
Audio .wav / .flac .mp3
Computer-aided Design (CAD) .dwg / .dxf / .x3d / .x3db / .x3dv -
Databases .sql / .xml .accdb / .mdb
Raster graphics & images .tif (uncompressed) / .jp2 / .jpg2 / .png .gif / .jpeg / .jpg / .psd
Statistical data .por .sav (IBM®SPSS)
Tables .csv / .tsv / .tab .xls / .xlsx / .xlx
Texts .odf / .rtf / .txt / PDF/A .docx / .doc / PDF
Vector graphics .svg / .svgz .cdr
Video

.mp4 / .mkv / .mj2 /
.avi (uncompressed)

.mov / .wmv

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