R write dataframe column to csv having leading zeroes

Question

I have a table that stores prefixes of different lengths.. snippet of table(ClusterTable)

ClusterTable[ClusterTable$FeatureIndex == \"Prefix2\",\'Feat

Answer 1

Save the file as a csv file, but with a txt extension. Then read it using read.table with sep=",":

write.csv(ClusterTable,file="My_Clusters.txt")
read.table(file=My_Clusters.txt, sep=",")