Imports github.com/richardlehane/mscfb github.com/xuri/excelize/v2 golang.org/x/crypto/md4 golang.org/x/crypto/ripemd160 golang.org/x/text/encoding/unicode Standard library imports bytes crypto/aes crypto/cipher crypto/md5 crypto/rand crypto/sha1 crypto/sha256 crypto/sha512 encoding/base64 encoding/binary encoding/xml errors fmt hash io math reflect strconv strings time