A daily updated filename extension database!

XLM3 file extension

The table below provides useful information about the .xlm3 file extension. It answers questions such as:

  • What is the .xlm3 file?
  • What program do I need to open a .xlm3 file?
  • How can the .xlm3 file be opened, edited or printed?
  • How can I convert .xlm3 files to another format?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Microsoft Excel 3 for Mac Macro Data

XLM3 file is a Microsoft Excel 3 for Mac Macro Data. Excel is a spreadsheet program from Microsoft, a component of its Office product group for business applications.
XLM3 format description not yet available
Category: Data files
Application: Microsoft Excel
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
XLM3 aliases:
XLM3 related links:
XLM3 related extensions:
Microsoft Works Spreadsheet

Quattro Pro Spreadsheet

Microsoft Excel Worksheet

Microsoft Excel Workbook Document

Lotus 123 Spreadsheet

Microsoft Excel Database Query

Pocket Excel Document

Microsoft Works Spreadsheet

Microsoft Excel OLE DB Query

Microsoft Excel OLAP Query

Other types of files may also use the .xlm3 file extension.

🚫 The .xlm3 file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

lm3, xl3, xlm, xm3

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Microsoft Excel Macro Definition
Bosphorus 3D Landmarking Database
Vegaelec XL3 System Data
Examiner Assessment Item Bank Data

🔴 Can't open a .xlm3 file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .xlm3 file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .xlm3 file extension, write to us!

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