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What is the .FMO File Extension?

.FMO File Extension Description:

The file extension .fmo was introduced by dBase IV as a component in the application's design, to handle speedy storage and effective retrieval of data. This application influenced the concept of RDBMS (Relational Database Management Systems), which specifies an orderly way of handling and storing data that is structured in table formats, and contained in database files, particularly considering the relationship that exists with each table. The file extension .fmo is described as the Compiled Format file of the database, that must not be confused with compiled files like the LBO, QBO, FRO, and probably the most common of all, DBO, produced by the Database Programming Environment. The .fmo file extension differs from the DBO format essentially, because the latter pertains to the Compiled Database Program.

In order to get a clearer picture, it is important to understand what the file extension .fmo represents. Fundamentally, a file format pertains to the manner of encoding or inputting of data for purposes of file storage in a computer device, which can only store information in the form of bits, so raw data is converted into a series of 1s and 0s to be understood by the system. In the context of the database format file that uses the .fmo file extension, it basically refers to how the database itself was encoded, and the actual specification of the database file. The file extension .fmo can contain information about the data type, table, index and reference creation instructions, which are called by the database program. The .fmo file extension can even serve as a template for other database files to be created, if they are of similar nature.

It must be understood that basically, a database program contains only variables that are defined by their type, structure, and other related properties, the actual constants of these variables are found within the database file. The database program needs to refer to the .fmo file extension, in order to make sure that the correct variable is associated with the right constant; otherwise, the program will produce an erroneous result. The file extension .fmo is also useful in conversion of databases created by dBase IV to other xBase formats. Like in the case of FoxPro, it cannot execute compiled files like the .fmo file extension, without the presence of the PRG (source code) of the SCR (design file) file formats.

Author: dataBased Intelligence, Inc.
Author URL:
Related Applications: dBase IV
Common Path: User Defined


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The Cause for .FMO files Errors:

.FMO files errors are potential critical Windows file errors and can be caused by a corrupted registry entry that should be repaired immediately to protect against additional corruption in other applications and/or devices. Dangers include system device damage, blue screen errors and fatal crashes.

What are the Symptoms of .FMO files Errors?

.FMO files errors produce a range of symptoms, including: pc locks on shut down or start up, applications freeze up, reduced computer performance, built-in speaker beeping, trouble opening files, slow system behaviour and software installation failure.

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