SEG file extension

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

• What is the .seg file?
• What program do I need to open a .seg file?
• How can the .seg file be opened, edited or printed?
• How can I convert .seg files to another format?
• Where can I find the specifications for .seg?
• Which MIME-type is associated with the .seg extension?

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

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

Mail.dat Segment File

.seg

Description:
SEG file is a Mail.dat Segment File. Mail.dat is the standard embraced by a significant portion of the mail production industry and the US Postal Service. Mail.dat is a relational database of nineteen "connected" files describing each characteristic that can exist within a mailing.

SEG format description not yet available

Category: Data files

Application: PostalOne!

Mime-type: application/octet-stream

Magic number: -

Magic string: -

Sample: -

SEG aliases:

-

SEG related links:

-

SEG related extensions:

.cqt

Mail.dat Container Quantity Data

.mpu

Mail.dat Mail Piece Unit File

.mpa

Mail.dat Postage Account File

.cpt

Mail.dat Component File

.csm

Mail.dat Container Summary File

.icl

Mail.dat International Container Label File

.pqt

Mail.dat Package Quantity File

.wsr

Mail.dat Walk Sequence File

.plr

Mail.dat Package Label File

.pdr

Mail.dat Piece Detail File

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

The .seg file extension is often given incorrectly!

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

Can't open a .seg 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:

example.seg

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 .seg 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 .seg file extension, write to us!

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