Operate 10 Perl CPAN modules in the specified file format

In Perl development, it is very likely that some files in different formats, such as XML, PDF, CSV, and RSS files, are different from some binary data formats. Perl applications need to operate on these files to read and write them.

In this case, you can turn to the Perl archive network (CPAN) to simplify file operations. CPAN has a large number of Perl modules used to process different file formats. This article lists 10 such modules that developers can use to operate on custom file formats.

Package name	Description
DBI	This module provides database-independent packaging, allowing Perl to communicate with the database. It supports database connection and management, and queries, transactions, storage programs, and error handling. By adding a database driver, it supports different databases, such as MySQL, PostgreSQL, and Oracle. This package is used to obtain data from RDBMS.
Archive: Tar	This module reads and writes tar files through a simple object-oriented interface. It allows you to package multiple files into a tar file, list the content of the TAR file, and supports the selective extraction of files from the tar file. It can also be used for gzip compressed files. This package is used when you need to create a tar or GZ file or extract a file from the file.
Archive: Zip	This module is used by Perl programs to read and write ZIP files. It provides the OOP method to create and read ZIP files, and supports adding new files to the file, changing the file content (including changing the name and date), extract the file content or query the file information. This module is used to create a zip file or extract files from the ZIP file.
Class: CSV	This module provides an object-based framework to effectively process data separated by commas. It allows CSV files to appear as objects (and vice versa) and reads values separated by commas into Perl variables. It also contains methods for writing new CSV records to a file using custom modes and delimiters. This module is used when you need to operate data fields separated by commas.
UNIX: passwdfile	This module provides an object-oriented interface for operating different types of password files. It includes methods to add, edit, and delete users and passwords, as well as methods to verify and generate passwords. It can also be used to operate other fields in the password file, such as directories, shell configurations, and GECOS strings. You need to operate the Unix Password File: this package is used to verify the password, add/edit/Delete the user account and configuration.
PDF: api2	This module allows you to create new PDF files or operate on existing PDF files. It allows you to add new pages to PDF files, set text font and font attributes, insert images, and adjust colors. It also contains methods for importing forms, exporting PDF data as strings, and setting and changing PDF file information. This package is used when you need to create a PDF file or obtain metadata from an existing PDF file.
XML: RSS	This module is used to create and maintain RSS entries. It provides an object-oriented interface to query RSS entries, obtain titles and content, and convert RSS data into appropriate HTML pages for Browser display. This package is used when you need to extract information from the RSS feed or create an RSS feed.
Win32: word: writer	This module is used to create a new Microsoft Word Document (Win32 Perl; Microsoft Word required ). It allows you to set the font and color, set the text format in different styles, and create lists and tables. This package is used when you need to dynamically create a Microsoft Word file.
MP3: Tag	This module is a package for several MP3 tag readers. It provides a program to view and edit the original data stored in the MP3 File Header ("tag. It supports reading and changing public fields, such as author, title, length, category, duration, or creating new custom fields. This package is used when you need to create a new MP3 file tag or read or change the existing tag.
Net: vCard	This module parses the contact information stored in vCard format and converts them into Perl data structures. This package is used to convert the vCard address and contact information into other formats (XML or r SQL.