This video shows how to download a ProperSoft converter. First, go to https://www.propersoft.net/
Choose the product you want to download. If you have a bank or Credit Card transaction file, or you have a file with transactions and each line represents a complete transaction. Then you would need the Transactions app. If you have General Journal Entries when each line in your file is a debit or credit line, and you may have multiple journal entries in the same file, but within each entry debit and credit lines are balanced out. So, then you would need the General Journal Entries app. In most cases, you will need the Transactions app. If you have a CSV file from your bank or credit card company, PDF file or OFX, QBO, QFX, QIF files, and you need to make them importable in your accounting software, like Quickbooks, Quicken, and others, then you would use the Transactions app. To download the Transactions app, click on the 'Download' icon.
Then, depending on the system you use, which is Windows, or macOS, you would click 'Windows download' or 'macOS download'.
And if you have Windows with limited administrative rights for your account, then you would also try the Windows archive portable version by clicking on the 'archive' button. This is the same app, but you don't need to have an administrator right and you just unzip the archive with all files needed to work, and you just start the Transactions app.