Yes, You can definitely convert multiple excel sheets at the same time to vCard easily.
Yes, definitely you can installed the software on the Windows 10 and its below versions
No, There is no need to installed the Outlook for purpose of conversion to vcf file format.
Yes, the software allows previewing the content before conversion to vCard.
Yes, you can easily view the resultant file into the device supported vCard or VCF.
Demo Vs Full Version
|Features||Demo Version||Full Version|
|Preview Excel Content|
|Map Attributes (Excel Fields & vCard Attributes)|
|Windows 10 & All Other Previous Windows Version Supported|
|Display the list of Matched Attributes|
|Allow empty Email Addresses to be Imported|
|Export Excel to vCard|
|Display & Export Email Address||Only First 25 items||No Limitations|
|Display & Export Phone/Mobile Number||Only First 25 items||No Limitations|