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What is the .WPG File Extension?

.WPG File Extension Description:

The WPG file extension is the default file extension used by WordPerfect for its graphics. Most files with the .wpg file extension can contain very complex data, which can either be bitmaps or vectors. However, the structure of these files is very simple. What can be found inside these files are only lines, rectangles, polylines, ellipses, polymarkers, and the like. They can have up to 256 colors chosen from a palette of more than one million colors.

A file with the .wpg file extension typically contains a header, which is the prefix area, and the graphics data, which is the record area. All the data inside this metafile are written in big endian byte order and are compressed with the PackBits compression algorithm using RLE (run length encoding).

The header of the file with the .wpg file extension is 16 bytes in length with four adjoining bytes that include its standard File ID code. This file always begins with this FieldID code, the values of which have to be in the order of FFh, 57h, 50h, and 43h. Following the header is the DataOffset which contains a value that points to the start of the record data, and immediately after it is the prefix which is at all times 16 bytes in length, the value of which is always 10h.

Following the DataOffset is the ProductType, which identifies the type of software product that created the file with the .wpg file extension. This field is always 01h in value, which denotes that the file was generated by the WordPerfect word processor. The value of this field never changes no matter what application created it. Next to it is the FileType defining the type of data that the file contains, the value of which is 16h at all times.

Also contained inside the file with the .wpg file extension are the internal version numbers for which the file was created. The field that has the MajorVersion is always 01h in value whereas the field that contains the MinorVersion is always 00h in value. These values may not match the external version number of the product. Following the version numbers is the EncryptionKey, the value of which is 00h indicating the file is not encrypted. The value of this field is always the same because files with the .wpg file extension are never encrypted.

The record area of the file with the .wpg file extension comprises a series of objects and their attributes that render the image. These objects can be any bitmaps, colormaps, and parts of the PostScript code. Each record starts with a record prefix that can be 2, 4, or 6 bytes in length, which depends on the type of record that follows it. The end of the file has a NULL body, which merely marks the end of the record stream.

Author: Corel Corporation
Author URL:
Related Applications: WordPerfect
Common Path: C:/ Program Files


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What Causes .WPG files Errors to Occur?

A typical and frequent explanation for .WPG files errors is damage in the Windows program registry - repairs are needed to prevent more damage in other applications and/or system devices. Receiving these errors places your computer at risk for fatal crashes, blue screen errors as well as device failure.

.WPG files Errors - Common Symptoms:

.WPG files error symptoms include program freezes, start up or shut down troubles, jerky system operation, sluggish behaviour, screen freezing, beeping sounds, problems opening documents and problems while installing software.

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