When using the TEXT function in Excel, you can specify a language by using the optional [language] argument. This argument allows you to control how the TEXT function formats dates, numbers, and other values. For example, you can use the TEXT function to display a date in a specific language.

To specify a language for the TEXT function, you need to know the code for that language. The code is a two-letter ISO 639-1 code that represents a particular language. For example, the code for English is "en".

Once you know the code for the language you want to use, you can specify it in the [language] argument like this:

TEXT(value, "[language]")

For example, if you want to display a date in French, you would use the following formula:

TEXT(A1, "fr")