Converting OST (Outlook Offline Storage Table) files to PST (Personal Storage Table) format for free can be done using various methods. Here, we’ll explore a method that involves using a free trial version of a reputable third-party OST to PST conversion tool like Stellar Converter for OST. Please note that many free tools may have limitations, and using a reliable third-party tool often provides better results. Some tools have 25 emails per folder limitation and some tools have OST file size limitation in their free version. One such tool is a2zMigrations Free OST to PST Converter which offers free conversion of OST file of size upto 1GB. For more information: https://www.a2zmigrations.com/ost-to-pst-converter/
