Does Open My Files Open, Convert, or Only Describe File Formats?

Updated

Open My Files (openmyfiles.com) is a file information directory: it describes file formats and organizes them into categories. The site presents itself as "The #1 File Information Directory" and its homepage is built around searching for and browsing file format categories. Nothing in the page evidence shows an upload tool, a converter, or an editor, so you should not expect it to open, convert, or modify your files. Use it when you need to look up what a file extension is or which category it belongs to; use a dedicated viewer or converter when you need to work with the file itself.

What the site actually does

The homepage centers on two things:

  • A search entry point — a "Search for:" field, suggesting you look up a format by name or extension.
  • A category directory — "Top File Format Categories" listing groups of formats, each with sample extensions and a "More" link.

This is reference material about formats, not a file-processing service. The distinction matters: a directory tells you that .XLSX is a spreadsheet format; it does not open your spreadsheet.

Categories listed on the homepage

The page evidence shows these categories and example formats:

Category Example formats listed
Archive DESKTOP, IES, ISO, ZIP
Audio Files M4P, PCM, COPY, DSF, AU
Data ODP, XML
Raster Image Files ITHMB, DPX, MAC, EXR, SCP
Spreadsheet Files XLR, XLS, XLSB, XLSM, XLSX
Executable Files XLM, AHK, ACTION, JSF, SCRIPT
Vector Image Files POSTSCRIPT, DRAWING, IDEA, PUPPET, PFD
Video Files OGV, VID, H264, QT, 264

Each category also carries a "More" link, so the homepage is a sample of a larger index rather than the full list.

How to look up a specific extension

  1. Go to openmyfiles.com.
  2. Enter the extension or format name in the "Search for:" field, or open the category you believe it belongs to.
  3. Read the format description to confirm what the file type is and how it is classified.

Expected result: a page explaining the format. What you won't get: a way to open the file, convert it, or preview its contents.

Choosing the right tool for your task

  • You have an unknown file and want to know what it is → Open My Files is a reasonable starting point, especially if you can guess the category.
  • You need to open, view, convert, or edit the file → use software built for that format; this site does not offer those functions.
  • You need authoritative technical specifications → a format directory is an overview, not a standards document; check the format's official documentation for precise details.

One practical caution: because the site is a directory, treat its descriptions as orientation rather than a guarantee. For anything where the exact format variant matters (for example, distinguishing .XLSM from .XLSX before choosing software), confirm with the application that produced the file.