Welcome to OpenTheFile.org

OpenTheFile.org offers reliable assistance and professional support in solving problems related to the opening of the unknown files.

Anyone using the information presented on the site can quickly open any unknown file without professional help of the IT specialist.

How to recognize the file format?

Each file name is complemented with a special file extension, the task of which is to inform the user and the operating system about the format in which the data contained in it are saved. To open the file, use a program that supports the format specified by the extension.

The file does not open. I do not know what format it is, what should I do?

File extensions are hidden by the Operating System. To see the extensions of all the files, including the file, which we cannot open, follow the steps listed below:

• Enter Windows Explorer or click My Computer
• Go to the Control Panel and then to Folder Options
• Select the View
• Find the setting specified as Hide extensions for known file types , then Clear this field.
• Click OK

Popular extensions in our site database

File extension	File name	Popularity
File extension.ASP file extension	File nameActive Server Page	Popularity
File extension.FLA file extension	File nameAdobe Flash Animation	Popularity
File extension.7Z file extension	File name7-Zip Compressed File	Popularity
File extension.CSS file extension	File nameCascading Style Sheet	Popularity
File extension.ODT file extension	File nameOpenDocument Text Document	Popularity
File extension.TIFF file extension	File nameTagged Image File Format	Popularity
File extension.LUA file extension	File nameLua Source File	Popularity
File extension.XLS file extension	File nameExcel Spreadsheet	Popularity
File extension.MDF file extension	File nameMedia Disc Image File	Popularity
File extension.H file extension	File nameC/C++/Objective-C Header File	Popularity