xlrd xlwt
xlrd and xlwt are Python libraries for reading and writing Excel files, respectively. xlrd allows developers to extract data from Excel spreadsheets (.xls and .xlsx formats), while xlwt enables the creation and modification of Excel files in the older .xls format. These libraries are commonly used for data processing, automation, and integration tasks involving Excel files in Python applications.
Developers should learn xlrd and xlwt when working with Excel files in Python, especially for legacy systems or projects that require compatibility with older .xls formats. They are useful for automating data extraction from reports, generating Excel-based outputs, or migrating data between Excel and other systems, such as databases or web applications. However, for modern .xlsx files, alternatives like openpyxl or pandas are often preferred due to better support and features.