We have found one software suitable in our database for this conversion.
You can use the open source GNU PSPP statistical software in order to convert .csv data files to SPSS data sets (.sav), which is more or less what users looking for csv to sav conversion want.
You may also find various websites that offer quick conversion of these file types. Some .csv files may not be valid so users first import them in Excel and save as .xls which can then be also imported in SPSS/PSPP.
CSV
Files with csv extension are text data files in common Comma Separated Value file format. Simple text file with values divided by comma, often used as an import/export format.
SAV
Files with sav extension are often found as database sets from SPSS, a predictive analytics software, originally created by by SPSS Inc. and currently owned and marketed by IBM.