If you want regex pattern for the following sample outputs:
text.45
example.90
value.46
then try:
\b[a-zA-Z]*[.][\d][\d]\b
Else if you only want those alphabets:
text
example
value
then try:
\b[a-zA-Z]*(?=[.][\d][\d]\b)
+++++++++++++++++++++++++++++++++++++++++
[amended upon re-understanding]
\b[a-zA-Z]+[.][\d][\d]\b
actually just need to change the '*' to '+'