Problems using write.csv in R with TR8 package - Data missing from CSV file

Question

I am an ecologist very new to R and trying to write data to csv which has been downloaded using the TR8 package for R - the package provides data on plant species from various databases. I manage to retrieve the data and extract it to create a dataframe, however when I try to write the dataframe to csv, I get a csv file with nothing in it.

The code I have used to download and then extract the data from the package:

 my_traits <- c("Galium aparine", "Lolium perenne",      
         "Sonchus asper")

my_traits<-tr8(my_traits,gui_config = TRUE, allow_persistent=TRUE)
print(my_traits)

abc<- data.frame(extract_traits(my_traits))
summary(abc)

The output I get from the above looks like this:

      > summary(abc)

   li_form_B           li_span            reprod_B           strategy        
     Length:3           Length:3           Length:3           Length:3          
     Class :character   Class :character   Class :character   Class :character  
     Mode  :character   Mode  :character   Mode  :character   Mode  :character  
       self.st          Breeding_sys        flw_muell          flw_kugler       
     Length:3           Length:3           Length:3           Length:3          
     Class :character   Class :character   Class :character   Class :character  
     Mode  :character   Mode  :character   Mode  :character   Mode  :character  
     poll_vect_B       
     Length:3          
     Class :character  
     Mode  :character
    
         li_form_B                      li_span
    Galium aparine H (Hemicryptophyte) - T (Therophyte)                   a (annual)
    Lolium perenne                  H (Hemicryptophyte) p (pluriennial-pollakanthic)
    Sonchus asper  H (Hemicryptophyte) - T (Therophyte)                   a (annual)
                               reprod_B                  strategy
    Galium aparine s (by seed/by spore) cr (competitors/ruderals)
    Lolium perenne s (by seed/by spore)           c (competitors)
    Sonchus asper  s (by seed/by spore) cr (competitors/ruderals)
                                                              self.st                Breeding_sys
    Galium aparine                               SC (self-compatibel) AF (facultative autogamous)
    Lolium perenne I+ (± self-incompatibel) - SI (self-incompatibel)              X (allogamous)
    Sonchus asper                                SC (self-compatibel) AF (facultative autogamous)
                                                                                                                                flw_muell
    Galium aparine                  A (flowers with open nectar)Typical pollinators: beetles, flies, syrphids, wasps, medium tongued bees
    Lolium perenne                                                                                 W (wind flowers)Typical pollinators: -
    Sonchus asper  B` (flower associations with totally hidden nectar)Typical pollinators: bees, bumble bees, wasps, bombylides, syrphids
                                                          flw_kugler
    Galium aparine              1.2a (disk flowers with nectar open)
    Lolium perenne                                0 (not applicable)
    Sonchus asper  7.2b (flower heads, Asteraceae, only ray flowers)
                                                         poll_vect_B
    Galium aparine     se (selfing) [the rule] - in (insects) [rare]
    Lolium perenne                                wi (wind) [always]
    Sonchus asper  se (selfing) [the rule] - in (insects) [the rule]

I use the following to write to csv:

write.csv("abc", file = "c:\\Users\\Me\\My filepath\\abc.csv", 
          row.names = FALSE) 

The resulting csv file opened in Excel looks like this:

x
abc

And that's all! One column with x in cell A1 and abc in cell A2. What am I missing?