How to attach a template to an existing Word document
Open the document, go to Developer > Document Template (or on older versions, File > Options > Add-ins > Manage: Templates > Go), click Attach, navigate to your .dotx template file, select it, and tick "Automatically update document styles". Click OK. Word attaches the template and updates the document's style definitions to match the template. The content stays the same. The formatting updates to reflect the new template's styles.
When would you attach a template to an existing document?
The most common scenario is migrating old documents to a new brand template. Your organisation has updated its brand guidelines, you have a new .dotx template, and you need to bring existing reports, proposals or policies in line with the new look. Attaching the template applies the new styles (fonts, sizes, colours, spacing) without requiring you to reformat every paragraph manually.
Another use case is fixing documents that have lost their template connection. If someone created a document from a template and the template has since moved or been deleted, the document's styles may have drifted. Re-attaching the correct template restores the intended formatting.
What does "Automatically update document styles" do?
When this box is ticked, Word replaces the document's current style definitions with those from the attached template. If the document's Heading 1 is 14pt Calibri and the template's Heading 1 is 18pt Arial Bold in dark blue, the document's headings change to 18pt Arial Bold in dark blue. Every style in the document that has a matching name in the template gets updated.
If the box is unticked, Word attaches the template but does not change any existing style definitions. The template's styles become available for new content, but existing content keeps its current formatting. For a migration scenario, you almost always want this ticked.
What happens to direct formatting?
Direct formatting (formatting applied through the ribbon rather than through styles) survives the template attachment. If someone bolded a paragraph by clicking the Bold button rather than applying a bold style, that bold formatting remains even after the template is attached. This means documents with extensive direct formatting may look inconsistent after attachment. The styles update, but the overrides stay.
To strip direct formatting after attaching the template, select all text (Ctrl+A), press Ctrl+Space to remove direct font formatting, then Ctrl+Q to remove direct paragraph formatting. This resets everything to the underlying style definitions from the new template.
What about styles that exist in the document but not in the template?
Styles that exist in the document but not in the attached template remain unchanged. Word does not delete them. This can leave orphan styles in the document that do not match the template's design. Review the Styles pane after attachment and clean up any styles that are no longer part of your brand standard.
At Ideaseed, we run a style audit as part of any document migration project. We identify orphan styles, map them to the new template's equivalent styles, and clean up the document so only the approved styles remain. For a single document this takes minutes. For a library of 50 documents, it justifies a scripted approach using VBA or a third-party tool.
Can you attach a template to multiple documents at once?
Word does not offer a built-in batch operation for template attachment. Each document must be opened and re-attached individually. For large migrations, VBA macros can automate the process. A macro can loop through a folder of .docx files, open each one, attach the template, update styles, and save. If you are not comfortable writing VBA, your template provider or IT team can build and run this macro for you.
What are the common mistakes?
Forgetting to tick "Automatically update document styles" is the most frequent error. Staff attach the template, expect the formatting to change, and wonder why nothing happened. The box is unticked by default.
The second mistake is attaching a template without checking the results. Style name mismatches between the document and the template can produce unexpected formatting. A style called "Body" in the old document and "Normal" in the new template will not map automatically. Review every page of the document after attachment and fix any discrepancies.
Attaching a template is the fastest way to migrate an existing document to a new brand format. Open the document, attach the .dotx, tick the update checkbox, and review the results. For large-scale migrations, use VBA to automate the process across multiple files.
If you need to migrate existing documents to a new template, Ideaseed can manage the migration for you.
RAVE REVIEWS
who we work with
.svg)
.svg)
.svg)
.svg)
