A comma delimited file cannot process any information other than straight data. This means that if your Excel spreadsheet has formulas in it, only the formula result will be saved in the CSV file.

A CSV (comma-separated values) file is a simple text file in which information is separated by commas, and is common in spreadsheet apps.

Google has updated the help document for file types indexable by Google to include Comma-Separated Values (.csv) in the list. I doubt Google was not bale to index those files before, and I wonder if ...