OpenTag file
File type: Various data file
An OpenTag file contains text extracted for translation and information that supports merging the localized text back into the original format.
File type category:
Various data file
Date updated: September 27, 2026
OpenTag was developed for a common localization task: extracting translatable text from source files while retaining the information needed to reconstruct the original format after translation.
An OpenTag file serves as an intermediate localization file rather than as the final document. It contains extracted translation data and the information required to merge the localized content back into the source material.
OpenTag files should be opened or imported with localization software that supports the OpenTag format.
To produce a localized file in its original format, open or import the OpenTag file in compatible localization software and use its merge or export function.
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