C# Excel Replace text in a range
 

Hi all! I am accessing Excel with c#. I have a cell with this text:
"Some text {a} with other text {b} and something else {c}". I want to
replace {a}, {b} an {c} with a specific string and this specific
string to be with a specific Font (ffor example). I am using
get_characters to set the font of these replacements, but when I
replace the last part ({c}) all style of the previous replacements is
gone. How to workaround this issue?