How to convert txt format to vcf or hmap or bed?

Question

Data conversion

There is a set of SNPs in txt format, you need to convert the data to the appropriate formats for use in the programs tassel(vcf,hmap) and admixture (vcf , bed/plink) . Tell me if you know, please.

Answer 1

code
only, I suspect that the format is still SNP, not TXT