It probably is important correctly, jut the formatting is off.
On the field, in the Inspector change the Data formatting from "General" (or whatever) to "As Entered", and it should show both values.
See if that helps
Field is set as Text in FM and it's default format is "As Entered" - and this value can't be changed for any text field. I can change Data formatting only for Number fields.
I'm afraid it could be much more complicated to preserve exact decimal value if I'll import it to Number field where I can control data formatting. I tested again to import the values to Number field set to display data "As Entered" and it didn't help :(