Function CONCAT, syntax?

Hi!
I can’t understand how to use the CONCAT function. In the sheet attached I tried to use the function, but it doesn’t recognize that is a function.

My LO is
Versión: 6.4.6.2
Id. de compilación: 1:6.4.6-0ubuntu0.20.04.1
Subprocs. CPU: 4; SO: Linux 5.4; Repres. IU: predet.; VCL: gtk3;

Can somebody help me please?

retencion.ods

The cell is formatted as text, so the formula is not recognized.

EDIT:
Clear the formula, give the cell a different formatting and retype the formula.


If this answers your question, please click (Answer markCorrect answer mark)

My operating system: Windows 10 Home (x64)

My LibreOffice versions: 7.0.5.2 (x64); 7.1.0.3 Portable

I tried to change to other types, but no way.
I don’t think that formula is not recognized because the cell format is text.

Furthermore, which format I should use for a cell that must receive text strings to concatenate?

E. g. General

I tried it as well

neu.ods

As I said General but the main thing is not TEXT.

image description

=CONCAT(F4,G4,H4,I4) error

=CONCAT(F4;G4;H4;I4)

or

=F4&G4&H4&I4

I cut out any cell from column C and pasted it into B4 and typed the formula.
test file

In an Answer @Smurf2 had written this comment: (Answer deleted)

Sorry Schiavinatto, but your solution is not working.

retencion.ods

Sorry Schiavinatto, but your solution is not working.

Because as I wrote in my answer, the cell is formatted as text.

PKG I as I said before, the cell type is not the problem, I tried various types including “default” but is not working.

Make the formula on another spreadsheet and cut and paste on it.

I already had this problem, and I solved it the way above.

@PKG I as I said before, the cell type is not the problem,

But that’s the problem! Clear the formula,
give the cell a different formatting and retype the formula.

See the complement in the answer above.

I think the best function to do this job is TextJoin

=TEXTJOIN(" ";1;F4:I4)