Importing events- accuracy

Hi all,
Ive been importing events' times to make an Excel file for some spike propagation analysis. The issue is, although in Brainstorm these time values are given to the accuracy of the third decimal place, the .txt file I received approximates to the second place. Is there a way not to loose precision here?
Would appreciate any hints.

Brainstorm exports the events with the same precision that are shown in the GUI.
It seems to me that the issue is on the Excel side where it shows by default only the digits after the decimal dot.

Which format are you exporting the events?
If it is .csv try to open the file with a text editor such as Notepad to see what is really saved in the file.