A daily updated filename extension database!

ISTR file extension

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

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

✅ IsoStar Library of Intermolecular Interactions Data

ISTR file is an IsoStar Library of Intermolecular Interactions Data. IsoStar is a web application that provides thousands of interactive 3D scatterplots that show the probability of occurrence and spatial characteristics of interactions between pairs of chemical functional groups.
ISTR format description not yet available
Category: Data files
Application: IsoStar
Mime-type: chemical/x-isostar
Magic number: -
Magic string: -
Sample: -
ISTR aliases:
ISTR related links:
ISTR related extensions:

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

🚫 The .istr file extension is often given incorrectly!

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

isr, ist, istg, itr, str

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

IsoStar Library of Intermolecular Interactions Data
InstallShield Uninstall Information
iThink Runtime
Adobe ImageStyler File
Altair FEKO Solution Vector Data
dBASE Structure Object
Digitrakker Instrument Data
Avantes Avasoft v8 Single Data
Sony Playstation Video Stream

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

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