To edit an Excel template, open the .xltx file via File > Open, make your changes, and save it as an Excel Template (.xltx) to keep it reusable.
One wrong save turns a reusable Excel template into an ordinary workbook that stops behaving like a template. The technique for how to edit an Excel template without losing its template behavior comes down to two details: opening it through the correct menu path and choosing the right format when saving. This guide covers both routines, plus the template-editing workflows inside Dynamics 365 and other business apps.
What’s the Difference Between Editing a Template and a Normal Workbook?
Editing the content inside an Excel template feels identical to editing any other workbook — you change cells, adjust formulas, and reformat layouts the same way. The difference shows up when you save. A normal workbook saves as an .xlsx file that contains only that one set of data. An Excel template saves as an .xltx file, and every time you open it, Excel creates a fresh copy based on your original design. That reuse behavior is what makes a template valuable, and it survives only if you preserve the .xltx format.
Opening Your Personal Template: Two Reliable Routes
You can open a personal Excel template through File > Open > Browse to locate the .xltx file directly, or through File > New > Personal to pick from templates stored in the Custom Office Templates folder. Both paths let you edit the template file in place, and neither changes how Excel handles the template on the next use — as long as you save it correctly afterward.
If you cannot find your template under File > New > Personal, it may have been saved to a different folder. The default location for personal templates on Windows is the Custom Office Templates folder inside your Documents directory. Open File > Open > Browse and navigate there manually to find the file.
How to Save an Edited Template Without Losing Its Reusability
To keep a template reusable after editing, save it as an Excel Template (.xltx) in the Custom Office Templates folder — never as a regular .xlsx workbook. The save step is where most people accidentally destroy the template behavior. In the Save As dialog, change the file type dropdown from Excel Workbook (*.xlsx) to Excel Template (*.xltx). Excel will automatically suggest the Custom Office Templates folder. Accept that location, and the template remains available under File > New > Personal the next time you need it.
| Method | Steps | Best For |
|---|---|---|
| File > Open > Browse | Open Excel, go to File > Open > Browse, navigate to the .xltx file | When you know the template’s file location |
| File > New > Personal | Open Excel, go to File > New > Personal, click the template | When the template is in the Custom Office Templates folder |
| Right-click > Open with Excel | Right-click the .xltx file in File Explorer, choose Open with Excel | Fastest access to a known template file |
| Excel for the web | Go to excel.cloud.microsoft, open the file from OneDrive | Quick edits from any browser |
| Dynamics 365 | Settings > Business > Templates > Document Templates > + New > Excel Template | Dynamics 365 administrators modifying system templates |
| Deltek ComputerEase | File > User Reports > Excel Templates tab > select template > Edit | Deltek ComputerEase users |
| IBM SPSS Modeler | Tools > Organize Model Measures > Connect to Excel, save as .xlt | SPSS Modeler users modifying legacy templates |
Editing Templates in Dynamics 365 and Other Business Apps
Dynamics 365, Deltek ComputerEase, and IBM SPSS Modeler each have their own template management paths that differ from desktop Excel. In Dynamics 365 Customer Insights, go to Settings > Business > Templates > Document Templates, click + New and choose Excel Template. Download the existing template, edit it in Excel, then upload the modified version using the Upload Template button. A key caution from Microsoft: place any custom content above or to the right of the existing data table so it is not overwritten when new data populates the template later.
In Deltek ComputerEase, the path is File > User Reports > Excel Templates tab, select the template, then click Edit. IBM SPSS Modeler uses Tools > Organize Model Measures > Connect to Excel, and if you are modifying a legacy template, save the file with an .xlt suffix for compatibility.
Common Mistakes That Break a Reusable Template
The most frequent template-editing mistakes involve saving in the wrong format, placing content in the wrong location, and using absolute cell references instead of named ranges. Each of these errors silently converts a reusable tool into a broken file that either stops behaving like a template or corrupts data the next time it is used.
| Mistake | Why It Breaks the Template | Correct Approach |
|---|---|---|
| Saving as .xlsx instead of .xltx | Creates a normal workbook that cannot create new copies | Always select Excel Template (*.xltx) in the Save As dialog |
| Placing custom content inside the live data range (Dynamics 365) | New data overwrites your custom content on the next template use | Place custom content above or to the right of the data table |
| Using cell addresses instead of named references (Dynamics 365) | Formulas break when the data range shifts | Define and use named ranges for any referenced cells |
| Saving the template to an arbitrary folder | Excel cannot find it under File > New > Personal | Always save to the Custom Office Templates folder |
| Opening a downloaded template without unblocking it | Windows blocks editing from the internet | Right-click the file > Properties > check Unblock |
| Editing the template without a backup copy | If you corrupt the file, you lose the original permanently | Keep a saved copy of the original template before editing |
| Using absolute file paths in template formulas | Paths break when the template moves or is shared with another user | Use relative paths or store dependent files in a consistent location |
When a Downloaded Template Won’t Open for Editing
A template downloaded from the internet may open in read-only mode because Windows file blocking is active. Right-click the .xltx file in File Explorer, select Properties, and look for an Unblock checkbox at the bottom of the General tab. Check it, click OK, then reopen the file. Excel should now allow full editing. This security measure affects files downloaded from email, cloud storage, or any web source and is one of the most common reasons a template appears locked.
The Three Changes That Keep a Template Working Forever
The entire template-editing process comes down to three decisions. Open the template through File > Open or File > New > Personal to reach the actual template file. Make your edits to content, formatting, and formulas. Then save using Excel Template (*.xltx) into the Custom Office Templates folder — never as a regular workbook. Follow that sequence, and the template will create a clean new copy every time, ready for the next task without any setup.
References & Sources
- TutorialsPoint. “How to Edit/Change a Personal Template in Excel.” Covers the core process for opening and saving personal Excel templates.
- Microsoft. Excel for the web. Official online version of Excel for browser-based template editing.
- Microsoft Learn. “Manage Excel templates in Dynamics 365 Customer Insights.” Official documentation for editing Excel templates within Dynamics 365.