A daily updated filename extension database!

STO file extension

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

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

✅ PRO100 3D Interior Design Project

STO file is a PRO100 3D Interior Design Project. PRO100 is a 3D interior and furniture design software.
Category: Project files
Application: PRO100
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
STO aliases:
STO related links:
STO related extensions:
PRO100 3D Interior Catalog Element

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

🚫 The .sto file extension is often given incorrectly!

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

cto, eto, sfo, sgo, sho, so, sot, sro, st, st0, sti, stk, stl, stp, tso

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

MSX2 Dynamic Publisher Stamp
Microsoft Sharepoint Site Template
Analysis Studio Project
Tekla STEP Data
WSxM SPM Processed Data
Catia Document
MotionTracking Statistic Filters and Masking Parameters Data
HTML Help Stop Words
Atari ST Standard Floppy Disk Image
Neopaint Stamp

🔴 Can't open a .sto 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 .sto 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 .sto file extension, write to us!

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