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EXF

exf icon

CostX data exchange file

File type: Various data file

An exf file extension is used for default data exchange format in CostX program.

Found 3 different file type records with the same exf filename suffix.

What is exf file?

File type category:
Various data file

Date updated: June 5, 2017

The exf file extension is related to CostX program solutions used to prepare estimates, bills of quantities in construction industry, developed by Exactal Technologies.

The exf file contains data in default CostX data exchange format.

How to open exf file?

Use CostX to open *.exf files.

How to convert exf file?

CostX is capable of export *.exf files to other formats.

Suggested software to open exf file:

Associated software actions with the exf file

Software applications that can open exf files:

Microsoft Windows

Software apps that create exf files:

Microsoft Windows

Software apps that import exf files:

Microsoft Windows

Software apps that export exf files:

Microsoft Windows

ExactFile checksum digest data

File type category:
Various data file

Date updated: January 28, 2019

The exf file extension is related to ExactFile file integrity verification tool for Microsoft Windows operating system, developed by StudyLamp Software.

The exf file used in the program contains checksum digest data.

How to open exf file?

Probably not meant to be accessed by the user.

How to convert exf file?

Probably cannot be converted to anything else.

Suggested software to open exf file:

Associated software actions with the exf file

Software applications that handle other tasks involving exf files:

Microsoft Windows

Exchangeable Image File Format

File type category:
Digital camera RAW file

Date updated: April 27, 2018

The exf file extension is also related to Exchangeable Image File Format.

Exif (despite being an acronynm it is usually written as "Exif" rather than "EXIF") is a file format developed by the Japan Electronic Industry Development Association (JEIDA) principally for use by digital cameras. The specification uses the JPEG, TIFF and RIFF formats, with the addition of metadata tags.

There are some issues with the Exif format, including:

  •  If Exif files are read by programs other than the original manufacturer, their maybe metadata (data describing the image) which can not be read, and which becomes corrupt or lost if the file is then re-saved in Exif format.
  •  The standard defines a markernote tag which manufacturers can use to store any data they wish in. As this tag is proprietary and manufacturer specific, it is difficult, if not impossible to read this information or preserve when re-saving the image.
  •  Exif is limited to 24 bit color depth.
  •  Exif has no provision for video.

How to open exf file?

Some programs like Photo Studio can still work with EXF format.

How to convert exf file?

Probably can be exported to other formats.

Suggested software to open exf file:

Associated software actions with the exf file

Software applications that can open exf files:

Microsoft Windows

Software applications that can edit exf files:

Microsoft Windows

Software capable of saving exf files:

Microsoft Windows

Software applications that handle other tasks involving exf files:

Microsoft Windows

Related file extensions