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Having problems opening a DLT file?

Learn about files with extension DLT

DLT File Type

- The quick facts

What are DLT files and how to open them

Are you having problems opening a DLT file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a DLT file?

A .DLT file is a DELTA Binary Dataset file. .dlt files are binary dataset files used in the DELTA system. DELTA is an acronym for DEscription Language for TAxonomy and is a flexible method of recording taxonomic descriptions for computer processing. It was adopted as a standard for data exchange by Biodiversity Information Standards (TDWG).

A dataset is a collection of data used in a certain program, the DELTA system for this instance, describing information related to botany and taxonomy.

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How to open DLT files

Important: Different programs may use files with the DLT file extension for different purposes, so unless you are sure which format your DLT file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 2 different DLT openers which you will find listed below.

Last updated: September 29, 2021

Suggest another file format using extension DLT

While we know of one file format using the .DLT file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .DLT file.

Various apps that use files with this extension

These apps are known to open certain types of DLT files. Remember, different programs may use DLT files for different purposes, so you may need to try out a few of them to be able to open your specific file.

DELTADELTAUser submitted
ICBCClientICBCClientUser submitted
We have not verified any software that we know for certain will work with DLT-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with DLT-files. If you know one, please use the 'Suggest a program' link below and tell us about it!