I have realized that when I am trying to add maps chart to show information from sheets including 2 letter country codes, some countries not not showing in the list. In my table there are only information and numbers from countries with blue colors. All other grey countries are not in the table but they exist in the map. For Example,

If you just want to go from 3 letter codes to 2 letter codes you can just flip the first map and use that. You could create a map that goes directly from 3 letter codes to country names by combing the files though. The ISO 639-1 two-letter code for the language of the current CultureInfo. There is no US defined but there is en (if you really have to use two letter name) which you can use it. All of them defined in that standard. var cultureInfo = new CultureInfo("en"); All of that two-letter codes are valid except iv which is for InvariantCulture so we
Latin American is only associated with one language. "es" is your two-letter language code. That aside, I would recommend against using language codes to indicate keyboard layouts. There is a separate system already in place for abbreviating the names of the layouts themselves.
About Country Codes. There are three kinds of Country Codes: 2-letter, 3-letter, and numeric code (or United Nations). 2-letter Country Codes are formally named “ISO 3166-1 alpha-2,” whereas 3-letter Country Codes are formally named “ISO 3166-1 alpha-3.” The numeric Country Codes are formally named ISO 3166-1 numeric.
Download this 2-letter codes country abbreviations Excel template now! It's very common to work with 2 letter country codes in daily practice. Since all countries are represented by a 2-letter country code, which is based on the International Naming Convention according ISO – International Organization for Standardization 3166, it's very easy
. 80 62 147 97 133 234 238 23 366

is there a 2 letter country code