The Open XML SDK provides tools for working with Office Word, Excel, and PowerPoint documents. It supports scenarios such as:

• High-performance generation of word-processing documents, spreadsheets, and presentations.
• Document modification, such as adding, updating, and removing content and metadata.
• Search and replace content using regular expressions.
• Splitting up (shredding) a file into multiple files, and combining multiple files into a single file.
• Updating cached data and embedded spreadsheets for charts in Word/PowerPoint. 

Account

A bank account allows us to send and receive money and has its unique number. Anytime we tell about an account in a bank, an account is always a bank account. In the other hand, an account in an information system is used to authorize a user. We have the term "account" meaning something absolutely different in two different domains. Domain has an impact on what we imagine when someone says a concrete term. So we have to learn and specify domain terms first.

Price

Let's speak about e-shop domain. What is a price? For us, as customers, it is how much we pay. A manager can think about price as an amount that his company pays to the supplier. For an accountant, a price is just a number. And e-shop programmer is now confused.

Language is crucial because customers and experts are telling their stories in their language. But it is also natural language, inaccurate, ambiguous, context-aware. And as we can see, language can be tricky even within one domain. 

h1 {
    color:red;
}

::deep h1 {
   color:red;
}

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