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File formats

This document lists the preferred and accepted file formats that can be used in data publication in the Data Repository.

Preferred formats

Preferred formats are file formats that are accepted and can be curated on the long term. Generally, file formats that are open, free to use, considered standard formats in relevant communities and commonly used are preferred.

Type Extensions Mimetypes
JPEG jpg, jpeg image/jpeg, image/jpg
JPEG2000 jp2, jpeg2 image/jpeg2000
GIF gif image/gif
PNG png image/png
TIFF tiff, tif image/tiff
Type Extensions Mimetypes
Text txt, text, md application/plain, text/plain, text/markdown
Type Extensions Mimetypes
Closed pdf application/pdf
Open odt, ods, odp application/vnd.oasis.opendocument.text, application/vnd.oasis.opendocument.spreadsheet, application/vnd.oasis.opendocument.presentation
Type Extensions Mimetypes
Container mp4, avi, mkv, mov, wmv video/mp4, application/x-troff-msvideo, video/avi, video/msvideo, video/x-msvideo, video/x-matroska, video/quicktime, video/x-ms-wmv
Tabular data
Type Extensions Mimetypes
HDF hdf5, h5, hdf4 application/octet-stream, application/x-hdf5, application/x-hdf4
NETCDF nc, cdl application/x-netcdf
Comma-separated csv, txt text/csv, text/txt
GeoTIFF geotiff application/geotiff

Accepted formats

Accepted formats are file formats that are accepted during deposition and are bitwise preserved for the duration of publication, but will receive no further curation on the long term. This usually is the case because file formats are not open, not properly described, or are considered obsolete. All preferred formats are accepted, as well as the following additional formats:

Type Extensions Mimetypes
Office doc, docx application/msword, application/vnd.openxmlformats-officedocument.wordprocessingml.document
Tabular data
Type Extensions Mimetypes
Office xls, xlsx application/, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Type Extensions Mimetypes
DNA sequencing base fastq, fq chemical/seq-na-fastq
DNA protein sequencing fasta, fa, fna, fsa, mpfa chemical/seq-na-fasta, chemical/seq-aa-fasta
Type Extensions Mimetypes
Mass spectroscopy mzxml application/xml
Type Extensions Mimetypes
tar tar, gz application/tar, application/gzip

Preservation and curation

Our preservation and curation policies can be found in the Preservation policy document.

Your file format not listed?

Possibly you have a dataset consisting of file with a file format not listed here. If you feel your file format should be listed here, please contact us.


The information shown on this page is subject to change without prior notice. Any removal or addition of file formats does not affect any deposits made before this information was changed.