How to replace a "."

[Pieter Hoeben]

Hi

I have this text file and wanted to change the “,” everywhere to “;” and then all “. to “,””.

File content:
timestamp,I_A,V_V,B_T
2025-11-02T22:12:16.297977,0.00018000,0.00018930,2.46600000e-07
2025-11-02T22:12:17.401758,0.00012000,0.00000630,1.64400000e-07
2025-11-02T22:12:18.262247,0.00018000,0.00000320,2.46600000e-07
2025-11-02T22:12:19.122938,0.00019000,0.00000210,2.60300000e-07

Replacing the , by ; just works. But replacing after that all . by , gives this result:
,
,
,
,
,

Is “.” a wildcard? If so, howe do I replace a “.” ?
Am I doing something wrong? Or is this a bug?

Regards, and thanks for the wonderful Notepadd++ - use it a lot!

[Alan Kilborn]

@Pieter-Hoeben

You probably have the “Search Mode” set to “Regular expression”. Change it to “Normal”.