What Is an XLTM File?

How to open, edit, & convert XLTM files

A file with the XLTM file extension is an Excel Open XML Macro-Enabled Template file created by Microsoft Excel. They're used to build similarly formatted XLSM files.

The file is similar to Excel's XLTX format in that they hold data and formatting, except that they're also used to make spreadsheets that can run macros, while XLTX files are used to build non-macro XLSX spreadsheet files.

XLTM Files

How to Open an XLTM File

XLTM files can be opened, edited, and saved back to the same format with Excel, but only if it's version 2007 or newer. If you're using an older version, you can still work with the file but you'll have to install the free Microsoft Office Compatibility Pack.

If all you need to do is open the spreadsheet and not edit it or run macros, use Microsoft's free Excel Viewer tool.

Some free Excel alternatives that can open this type include WPS Office Spreadsheets, LibreOffice Calc, OpenOffice Calc, and SoftMaker Office's PlanMaker. You can also edit one with those programs but when you go to save, you might need to choose a different file type if they don't support saving back to XLTM.

Google Sheets lets you upload XLTM files to view and even make changes to the cells, all within a web browser. You can also download it when you're finished, but not back to the same format. XLSX, ODS, PDF, HTML, CSV, and TSV are the supported export formats.

If you find that an application on your PC does try to open the file but it's the wrong application or you'd rather have another installed program open it, change the default "open" program for XLTM filesin Windows.

How to Convert an XLTM File

If you have Excel installed, you can convert the file to lots of formats by opening it and then using the File > Save As menu. This lets you save to XLSX, XLSM, XLS, CSV, PDF, etc.

The other file openers listed above can convert the file, too, most likely to those same or similar formats.

A free document converter can save it to a new format as well. Our favorite one for this type of file is FileZigZag because it runs entirely in a browser, which means you don't have to install any programs. It converts XLTM to PDF, TXT, HTML, CSV, ODS, OTS, SDC, VOR, and several other formats.

Still Can't Open It?

As you might have already noticed, there are several file formats that Excel uses for different purposes (e.g., XLA, XLB, XLC, XLL, XLK). If your file doesn't seem to be opening correctly, double-check that you're reading the extension correctly and not confusing it with some other type of file.

Similar are files that look related to Excel but aren't spreadsheets, like XLMV, XTL, XTG, XTM, and XLF files.

Was this page helpful?