unfortunately it´s possible to import the data only from exported formats .xml and .pws (encrypted export) like it´s described in the Help file:http://www.stickypassword.com/help/v5_0 ... swords.htm
The .txt and .html unprotected export formats are determined for printing of the data (which is not recommended for security reasons).
I´m sorry but there is no possibility to import your data to Sticky Password from the .txt file. Please use the .txt file to check your logins and passwords and create your accounts once more.
Next time use the Encrypted export to the .pws file.