IS3 file format description

Many people share .is3 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .is3 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .is3 files.

1 filename extension(s) found in our database.

.is3 - SmartWare Input-Screen File

The IS3 data files are related to SmartWare. The IS3 file is a SmartWare Input-Screen File. SmartWare is a programming platform. SmartWare also includes a word processor, spreadsheet, and communication modules.

Data files
- / -
is1, is2, is4
SmartWare Input-Screen File related extensions:
SmartWare Executable Program
SmartWare Word Processor Backup Data
SmartWare Backup Definition Data
SmartWare Backup Query Definition
SmartWare Backup Report Definition
SmartWare Sort Definition Backup

Naturally, other applications may also use the .is3 file extension. Even harmful programs can create .is3 files. Be especially cautious with .is3 files coming from an unknown source!

Can't open a .is3 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 can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .is3 file extension is often given incorrectly!

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

i3, i3s, ic3, ie3, is, ise, isr, isw, iw3, ix3, ks3, ls3, os3, s3, si3

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

InstallShield Express File
REBEL Chess Data
Magic Bullet Looks Package
InfoWeb 3 Page
Xilinx ISE Project
Freescale S-record File

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

If you have useful information about the .is3 file format, then write to us! >> IS3 file