Technical documentation rarely arrives as a simple Word file. Manufacturing companies, software vendors and engineering firms write in XML, DITA, Markdown, InDesign, FrameMaker or directly in content management systems. Each format mixes translatable text with code, tags, attributes and variables that must survive translation untouched.
For a documentation team expanding into new markets, the question is not only who translates, but how the files travel through translation without breaking. File handling is where computer-assisted translation software earns much of its value.
Separating text from structure
A good translation environment uses file filters. When you upload an XML manual, the filter extracts only the translatable text and protects everything else: element names, attributes, IDs, conditional processing markers and links. The translator sees clean sentences with small tag placeholders where formatting or inline elements occur.
After translation, the filter rebuilds the file in its original structure, now containing the target text. If the filter is configured correctly, the translated file validates just like the source and can go straight back into the publishing pipeline.
Why XLIFF matters
Many workflows use an exchange format between the source system and the translation environment. The most widely used is XLIFF, an XML-based standard designed specifically for localization. Content management systems export XLIFF, translators work on it, and the system imports the translated file back.
The advantage is interoperability. A component content management system, a software repository and a translation platform can all exchange XLIFF without custom converters. When choosing software, check which XLIFF versions are supported and how notes, context and length restrictions are preserved.
Tags are where things go wrong
Inline tags mark bold text, variables, cross references, footnotes and UI elements. If a translator deletes, duplicates or misplaces a tag, the file may fail to import, a link may break or a variable may display as raw code in the published manual. These errors are among the most common and most frustrating in technical localization.
Any serious translation cat tool includes tag verification, comparing tags in source and target and warning about missing or extra ones before delivery. Some also check tag order, which matters for nested elements. Running these checks on every file should be mandatory.
Game strings take these risks to an extreme. A single title can contain hundreds of thousands of short strings packed with inline tags, placeholders and variables, and one misplaced tag can break a build or display raw code on screen. That is why studios rely on dedicated video game localization pipelines that combine tag verification with in-context previews and locked segments. If your format workflow already handles XLIFF cleanly, extending it to game strings is mostly a matter of discipline, not new tooling.
Variables and reused content
Technical writers reuse content heavily. Product names may be stored as variables, warnings as reusable snippets and procedures as conrefs or included topics. Translators should see these elements clearly, ideally with their resolved values for context, but should not be able to change variable names. Proper filter configuration handles this.
Reuse also benefits translation memory. A warning that appears in fifty topics is translated once and matched everywhere else. Combined with a well-structured source, this keeps translation costs proportional to genuinely new content.
Desktop publishing formats
Brochures, data sheets and printed manuals often live in InDesign. Translation software that supports InDesign exchange formats lets translators work on the text while designers keep control of layout. Text expansion is still a concern, since German and French run longer than English, so plan for designers to review layout after import.
Screenshots and images
Images with embedded text remain a weak spot. Where possible, keep text in separate layers or callouts so it can be extracted and translated. For software documentation, localized screenshots are often generated directly from the localized user interface rather than edited by hand.
Version control and updates
Documentation changes with every product release. Rather than sending entire manuals each time, efficient workflows send only new or modified topics. The translation memory supplies everything unchanged. Some platforms connect directly to Git repositories or documentation systems, detecting changes automatically and creating translation jobs without manual exports.
Quality assurance beyond language
Technical QA covers more than grammar. It includes terminology compliance with the approved termbase, consistency of UI labels with the localized software, correct units and numbers, and tag integrity. Automated checks handle the mechanical part, while reviewers with technical knowledge confirm that instructions are accurate and safe.
Segmentation and context
Technical sentences can be long, with lists, notes and parameters embedded in them. Segmentation rules decide where one translation unit ends and the next begins. Rules that split too aggressively give translators fragments without context; rules that split too little reduce memory matches. Tuning segmentation for your content type, and showing translators a live preview of the topic they are working on, improves both quality and reuse. Context matters especially for short strings such as table headers and UI references, where a single word can have several valid translations depending on where it appears.
Practical advice for documentation teams
Involve your translation partner when you design your documentation architecture, not after. Clean XML, consistent use of variables, minimal hard-coded text in images and clear segmentation rules make localization faster and cheaper for every language you add. Share sample files early so filters can be tested and tuned before the first large project.
The payoff is a pipeline in which source updates flow to translators, translations flow back to publishing, and manuals in every language ship alongside the product rather than weeks later.