Creating txt file from a dataframe with specific fixed-width format

I have a data frame called dfGL with 22 columns and 17000 rows! The row names are: pressure, diameter, roughness...

I want to create a txt file from this data frame such that:

• 1st column of dfGL starts from position 1 of the text file (Line 1 Column 1),
• 2nd column starts at position 25 (Line 1 Column 25),
• 3rd column starts at position 50 (Line 1 Column 50),
• and so on! enter image description here

Here is the solution that works:

library(gdata)

dfGL <- rbind(colnames(dfGL) , dfGL)
write.fwf(dfGL, file = "Inpuuuttt.txt", 
          width = 25,rownames = TRUE, colnames = FALSE,  quote = FALSE)