Use this guide to open any CSV without any problems and also to use the optilyz Mailing List.

Using the column filters, for example, empty records/contents can be found and each column and record can be checked. Detailed information about the optilyz Mailing List can be found in this article.

Step 1

To open a CSV file correctly, first open Excel and create a blank workbook.

Step 2

Select “Data“ in the ribbon.

Step 3 

Click on “Get Data“ > "From file" > "From Text/CSV" in the ribbon.

Step 4

Select the file you want to open.

Step 5

In the newly opened window select the file origin and delimiter: in order for all special characters to be displayed correctly and the data be separated, as shown in the pictures below (for a “recipients” file the file origin is “65001: Unicode (UTF-8)” and “Comma” as delimiter).
"Load" and done!

False file origin & delimeter: 

Correct file origin & delimeter: 

Note: If the volume of data is high, it may take a little longer to open.


You can easily open CSV files with other programs. For example, a Google spreadsheet (new spreadsheet > import > search file > import > ready) or free providers such as are also suitable.