What is a file extension?Short answer: it's the set of letters after the period (.) in the name of a file. Long answer: File extensions signify the file format of a file. It tells the operating system (OS) how data was stored in the file. Not all OS, require a file extension though. For instance, this is optional in Unix, but is mandatory with MS-DOS and Windows systems. In most file formats the file type is actually defined by the contents (first bytes, file structure), but extensions are used to define the application that is used for opening the file. Below is a detailed database of thousands of file extensions our team has compiled for you. Feel free to browse! |
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| ABCDEFGHIJKLMNOPQRSTUVWXYZ | |||||
| XEM - Extension Details | |||||
| Date Added: | January 01, 1970 | ||||
| File Extension: | .XEM | ||||
| Description 1: | An .XEM extension indicates an extended model definition that was created using the enterprise modeling program called PowerDesigner. Users can save one or more XEM files together with a PowerDesigner database file (.PDM) and store them on network drives or local hard disks. Viewing model definitions related to a specific model is done by choosing "Model>Extended Model Definitions list. Never modify XEM files to avoid damaging and rendering them unusable. | ||||
| File Type: | Data file | ||||
| Mode: | ASCII | ||||
| Program(s) to Open: | Windows: Sybase PowerDesigner | ||||
| Common: | |||||
| Extension: | |||||
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