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X File - What is it and how do I open it?
The .x file extension is most commonly associated with Lex source code files. These files contain source code ...

X32 File - What is it and how do I open it?
Files that contain the .x32 file extension usually store application extensions that are used by a variety of ...

X_T File - What is it and how do I open it?
The .x_t file extension is used for a proprietary CAD and 3D graphics file format, which was developed by Siem ...

XAP File - What is it and how do I open it?
The XAP file format was developed by Microsoft for their Windows Phone OS (versions 7 and 8). This file format ...

XBEL File - What is it and how do I open it?
XBEL is an acronym for XML Bookmark Exchange Language. This programming language is an Internet bookmarks exch ...

XCF File - What is it and how do I open it?
Files that contain the .xcf file extension are most commonly used to store GIMP image files. These image files ...

XEX File - What is it and how do I open it?
Files with the .xex extension contain executable Xbox 360 gaming files. These files contain an application or ...

XFDL File - What is it and how do I open it?
XFDL is an acronym for Extensible Forms Description Language. Files that contain the .xfdl file extension are ...

XFS File - What is it and how do I open it?
The .xfs file extension is most commonly used by the Gunbound computer game. The XFS files contain game files ...

XHTML File - What is it and how do I open it?
Files that contain the .xhtml file extension hold web pages that have been written using the XHTML syntax. The ...

XIB File - What is it and how do I open it?
The .xib file extension is most commonly associated with Interface Builder files. Interface Builder is a graph ...

XIF File - What is it and how do I open it?
The .xif or extended image format file extension is an extension for files originally created for the ScanSoft ...

XLR File - What is it and how do I open it?
Files that contain the .xlr file extension are commonly used by the Microsoft Works productivity suite. The .x ...

XLS File - What is it and how do I open it?
The .xls extension is given to spreadsheets that have been created in versions of Microsoft Excel that were pu ...

XLSB File - What is it and how do I open it?
The .xlsb file format is used in files created by programs that generate documents using spreadsheets and form ...

XLSM File - What is it and how do I open it?
Files that contain the .xlsm file extension are files that contain macro-enabled spreadsheet files that have b ...

XLSX File - What is it and how do I open it?
Files with the .xlsx extension are Microsoft Excel files that have been created using Microsoft Excel versions ...

XLTX File - What is it and how do I open it?
The .xltx file extension is most commonly used by the Microsoft Excel spreadsheet application. The XLTX files ...

XMIND File - What is it and how do I open it?
The .xmind file extension can be found in files that are specific to XMind Workbook. XMIND is a document file ...

XML File - What is it and how do I open it?
Files that contain the .xml file extension are Extensible Markup Language files. XML files are structured text ...

XMP File - What is it and how do I open it?
XMP is an acronym for Extensible Metadata Platform. Files that contain the .xmp file extension normally store ...

XNK File - What is it and how do I open it?
Files that contain the .xnk file extension are most commonly associated with the Microsoft Exchange communicat ...

XP3 File - What is it and how do I open it?
Files that contain the .xp3 file extension are commonly used for TVP XPK3 virtual file systems. The XP3 files ...

XPI File - What is it and how do I open it?
XPI files are used and created by a variety of Mozilla applications, including the Thunderbird email applicati ...

XPS File - What is it and how do I open it?
Files that contain the .xps file extension are used for descriptor files that have been written in the XPS pag ...

More file types starting with X

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