SD3 file format description

Many people share .sd3 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .sd3 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .sd3 files.

1 filename extension(s) found in our database.

.sd3 - Hy-Tek Meet Manager SDIF Data

The SD3 data files are related to Hy-Tek Meet Manager. The SD3 file is a Hy-Tek Meet Manager SDIF Data. Hy-Tek Meet Manager is a desktop software for data handling for swim meets.

Hy-Tek Meet Manager
Data files
- / -
Hy-Tek Meet Manager SDIF Data related extensions:
SQL Backup SQL Server Backup
Adobe Illustrator Flattening Module
HLM Multivariate Data Matrix
Pegasus Mail Attribute Record Data
TIBCO iProcess Process Definition
EROS B Metadata

Naturally, other applications may also use the .sd3 file extension. Even harmful programs can create .sd3 files. Be especially cautious with .sd3 files coming from an unknown source!

Can't open a .sd3 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 .sd3 file extension is often given incorrectly!

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

d3, ds3, ed3, qd3, s3, s3d, sc3, sd, sde, sdr, sdw, se3, sf3, sr3, ss3

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

STK Satellite Database Main File
MDL Molfile Data
ArcGIS Service Definition Data
Multi-resolution Seamless Image Database
SKM Power Tools PPE Table Information

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

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If you have useful information about the .sd3 file format, then write to us! >> SD3 file