Hi, How to read line by line of text file and store to array C

data.txt example

1234	       25500	24000	1
1345	       23523	21209	5
9865	       12389	   600	98
....

and sorted in order by last column
I try everything and it not working

Thank

You obviously didn't try everything. Including reading the Member Rules.

Hi, How to read line by line of text file and store to array C

data.txt example

1234	       25500	24000	1
1345	       23523	21209	5
9865	       12389	   600	98
....

and sorted in order by last column
I try everything and it not working

Thank

Well, Can you show us what you tried?

and sorted in order by last column

I don't have a clue what you're talking about. That's why I'm saying, post your code here, that'll explain everything for you.

I can do only read first element and store to array the rest I just struct :(

#include <stdio.h>
#include <stdlib.h> /* required for atoi */

int main(void) {
    int  i=0,totalNums;
    double numbers[100];
    double atof ( const char * str ); 
    char line[100];  /* declare a char array */
    
    FILE *file;  /* declare a FILE pointer  */
    file = fopen("data.txt", "r");  /* open a text file for reading */
    
    while(fgets(line, sizeof line, file)!=NULL) {       /* keep looping until NULL pointer... */
       // printf("Lines of numbers.txt file are: %s", line);     
        numbers[i]=atoi(line);  /* convert string to double float*/
        i++;
    }
    totalNums = i;
    for (i=0 ; i<totalNums ; i++) {
        printf("\nThe number %d of %d is: %.0f", i+1, totalNums, numbers[i]);
        
    }
    fclose(file); 
    return 0;
}

the last column what i mean is last sort last element of each line
but to to store every element into array ?

double atof ( const char * str );

You need not (and probably should not) do that. Function 'atof' is already declared in the standard library 'stdlib.h' and besides you're not even using it:

numbers[i]=atoi(line);  /* convert string to double float*/

But that's what you should've done, because atoi converts the string to an 'int' type, not a 'double float'.
You should check for errors while opening a file stream, like this:

totalNums = i;
for (i=0 ; i<totalNums ; i++) {
printf("\nThe number %d of %d is: %.0f", i+1, totalNums, numbers[i]);
if((file = fopen("test.txt", "r"))==NULL)  /* open a text file for reading */
        exit(1);//couldn't open the requested file!

And have a good luck with whatever you're trying to do up there.