What is the format of pptm?

pptm is a file format of PowerPoint in the office office suite. Its full name is "Macro-enabled PowerPoint presentation". pptm files can only be opened with office software of version 2007 and above. If opened with other versions of software, problems such as inability to edit and incomplete images will occur.

The operating environment of this tutorial: Windows 10 system, Microsoft Office PowerPoint 2016 version, Dell G3 computer.

What is the format of pptm?

pptm is a file format of PowerPoint in the office office suite. Its full name is "Macro-enabled PowerPoint presentation".

Macro (Macro) is a name for batch processing, a rule or a pattern in computer science. In the office suite, it is a set of instructions. Macros can make the software in the office suite (word, excel, ppt) process file information more efficiently and quickly.

But the use of macros also has considerable risks. Macros are disabled by default in Office. Normally, this function is not used, and there are certain technical thresholds for using macros.

pptm is a macro-enabled file, and the file can only be opened with 2007 and above versions of office software. If it is opened with other versions of software, problems such as inability to edit and incomplete pictures will occur.

Related extensions:

Macros are commands organized together to complete a specific task as a single command. The definition of macro in Microsoft Word is: "A macro is a series of word commands that can be organized together as an independent command to make daily work easier." Word uses the macro language Visual Basic to write macros as a series of instructions.

A macro in computer science is an abstraction that replaces a certain text pattern according to a series of predefined rules. The Excel office software automatically integrates the "VBA" high-level programming language, and the program compiled in this language is called a "macro". Using "VBA" requires a certain programming foundation and consumes a lot of time. Therefore, the vast majority of users only use the general tabulation function of Excel and rarely use "VBA".

The interpreter or compiler will automatically perform this pattern replacement when encountering a macro. For compiled languages, macro expansion occurs at compile time, and the tool that performs macro expansion is often called a macro expander. The term macro is often used in many similar contexts, derived from the concept of macro expansion, including keyboard macros and macro languages. Most of the time, the use of the word "macro" implies the conversion of small commands or actions into a series of instructions.

The purpose of macros is to automate frequently used sequences or to obtain a more powerful abstraction capability.

Computer languages ​​such as C or assembly language have simple macro systems, which are implemented by the preprocessor of the compiler or assembler. The job of C's macro preprocessor is just simple text search and replacement. Using additional text processing languages ​​such as M4, C programmers can obtain more sophisticated macros.

Lisp-like languages ​​such as Common Lisp and Scheme have more sophisticated macro systems: macros behave like functions that transform their own program text, and all languages ​​can be used to express this transformation. A C macro can define a grammatical replacement, but a Lisp macro can control the calculation of a section of code. Gained the ability to control the order of execution of code (see lazy evaluation and unrestricted functions), making newly created syntax constructs indistinguishable from the language's built-in syntax constructs. For example, a Lisp dialect that has cond but not if can use macros to define the latter from the former. Major extensions to Lisp syntax, such as the object-oriented CLOS system, can be defined by macros.

Related recommendations: "Introduction to Programming"

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