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>> EFW2C file

EFW2C file format description

Many people share .efw2c files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .efw2c file can be edited, converted or printed with. On this page, we try to provide assistance for handling .efw2c files.

1 filename extension(s) found in our database.

.efw2c - Electronically Filled W-2c Form

EFW2C file is an Electronically Filled W-2c Form. Form W-2 is an Internal Revenue Service (IRS) tax form used in the United States to report wages paid to employees and the taxes withheld from them.

.efw2c file format description:
EFW2C format
Document files
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Electronically Filled W-2c Form related links:
Electronically Filled W-2c Form related extensions:
Electronically Filled W-2 Form

Naturally, other applications may also use the .efw2c file extension. Even harmful programs can create .efw2c files. Be especially cautious with .efw2c files coming from an unknown source!

Can't open a .efw2c 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 .efw2c file extension is often given incorrectly!

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


Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Electronically Filled W-2 Form

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