A daily updated filename extension database!

RI file extension

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

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

Table of Contents

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

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

✅ Lotus 1-2-3 Data File

RI file is a Lotus 1-2-3 Data File. Lotus 1-2-3 is a spreadsheet program designed for IBM-compatible personal computers by Lotus Corporation in 1982.
RI format description not yet available
Category: Data files
Application: Lotus 1-2-3
Mime-type: application/vnd.lotus-1-2-3
Magic number: -
Magic string: -
Sample: -
RI aliases:
RI related links:
RI related extensions:
Comma-Delimited ASCII File

Comma-Separated Values

ClarisWorks Document

Data Interchange Format

Microsoft Word Document

Lotus Word Pro Document

Microsoft Word for Macintosh Document

Data Interchange Format

Microsoft PowerPoint Presentation

Revisable-Form Text

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

🚫 The .ri file extension is often given incorrectly!

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

di, ei, fi, gi, ir, rk, rl, ro, ru, ti

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

RK Compressed Archive
Fortran Interface File
Gforth Image File
Crestron BPC-HPLIR IR File
Turing Include File
ROwin Project
D Language Source Code
Electric Image
R.viewer List Data
The 7th Guest Archive

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

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