#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox
Local $sRegex = "(?m)(\w{2})"
Local $sString = "308204BF020100300D06092A864886F70D0101010500048204A9308204A50201" & @CRLF & _
"000282010100A9CB5B5A9C012B67FE9184A886824843D5AFD01192B48E8D228F" & @CRLF & _
"CFC4131A27A5B19F55507EFC72E2D9C4FB6DA86CA22310E03C5DFB54A54A1034" & @CRLF & _
"16160127712051DB0CDEEF32D32D50B9EFA98563AD4070A793C0621B6ED17FD5" & @CRLF & _
"45632788FE638A6F53E8686DECFE689E2547D9647F41FA8A5AF7368090420C0A" & @CRLF & _
"100B80A7876A165C537FC91047883285FA2DB31320A3A47D4009C5367C6B6B38" & @CRLF & _
"34D889565C7DA7D1F7B44CA90B4E45201E775F909738FD608A3D644EEE720E14" & @CRLF & _
"1EB917BF326CA13C2B32B43608CC83CFFC67B90FC1D6AFD28C826F4F9DE39288" & @CRLF & _
"188173EB0BB51C02B8FF0116411893C222875151BBA0259D6258296A480837E7" & @CRLF & _
"FC3F097F23C90203010001028201003339191F35AF18A42FE5408B02C12D01E1" & @CRLF & _
"E63F33FDF920842D680B3AD0B4743F855D570488BAAA020BC6643F89AEF41EF6" & @CRLF & _
"095FCCCE7493C4CB2C9B7919F2072BC3E5FC7508DE615CEB5C9C939C9D1C7833" & @CRLF & _
"442ACBC00D1C9A71212AE4A5D9AB3CE6577D8DC06B6132C2E6EAC249300B4021" & @CRLF & _
"5039EF186F2295FA41D2E35575B4E0EB7D68517F39D5A2EDDB8ACED8A7E49ADA" & @CRLF & _
"E5F4F9A185639261B9007CDCC1F42990B0039B55112387DF17583A32F4D3712F" & @CRLF & _
"E35C73069EE2B73AE63F73EF52B31E5EC8AD4D53D07A330D687B894877676345" & @CRLF & _
"092B4F6DE5C9C3C9BBAC05CC02CF5F8318EFA0E95892F25E3A804CA02E17160D" & @CRLF & _
"70B2BE2EB45807139E269A6B9EFC6D02818100CD86015BE7DCA8E0204D73D96A" & @CRLF & _
"4A4467681D87147BEF96AFCDD39536A4759AD7CF816876298D35563D2D862E52" & @CRLF & _
"0EC7D848C8AA53F8B85D1FDF1D3538919F0C639ADA67B3EBD3ED4C4317E674FA" & @CRLF & _
"D627E041A37B406F04F09892B703288AA30EA60793F582CED515FC4520F1AE43" & @CRLF & _
"E718667262F027D7520E238194AF29FB9C056302818100D37EEF8066A10F69BB" & @CRLF & _
"5B97CA9977F4C9D82B7707ECE0BF54D095E392DBA2A1B941A0D90E66B14A313A" & @CRLF & _
"780C65F6BE63CA5F3491F20109C041C8726BC5A856F09C1E4F45BDE0CB10D9C4" & @CRLF & _
"E9F33FFAB92B66D4289D5CF83C2DE339BA73F7942A19556F3EF6526CF156AEA5" & @CRLF & _
"65CA5269042610D0CE2B9BFE1AFCD2F057F5A941D13FE302818100AA12321DB3" & @CRLF & _
"88CDD669E4ADF1441BA0EF5120DE1EFD500E09FCF11190DE16D3C3B25B0BEE7C" & @CRLF & _
"03F6171F1904E85FCF0B60D719F698F640DA0EFDBA55C831F8C36FC93CE283E8" & @CRLF & _
"AABEBB54E9FA32E33F44503700E98530598E1F33896E7BA5FDB8A97BABDC861A" & @CRLF & _
"520A976F3D0BC1813F42D9C3DE4B8D2C89225A0F68D26A936350B102818100A0" & @CRLF & _
"EEED362A62124565610BFF098AC305386DD294804680B0FC4BA230E4DA3AEFAA" & @CRLF & _
"25C824F235A3FC13BEB7C87ADA633AE1F931B911DB26A5A7EE915D857C2A78D1" & @CRLF & _
"8386D13695AECBD6D022DE235DF5CDB850F375841ADEDC11D87458073185B782" & @CRLF & _
"004A156C7AB4780EB9871BF0774CB3ECFF85259D5551DEFD2E216BDAFE6BFB02" & @CRLF & _
"818100BCF51782BBC9C4689771CFCAFD06654068E23D9879D0F3AC3D4A9B481B" & @CRLF & _
"06AFB8422E16FB96471D9340987603008BFC067B2214CEE3AFC036D01A765579" & @CRLF & _
"67C28DD9C5541FA0A8A5FAD7DF884B3DCE17A8BC34E7E3E2276457380C44BA79" & @CRLF & _
"3CD92EA71693F1B1DC31AC18F5C37CE9C8A2496297F5DEBC3313ED1F92EC0F68" & @CRLF & _
"652261"
Local $sSubst = "0x$1, "
Local $sResult = StringRegExpReplace($sString, $sRegex, $sSubst)
MsgBox($MB_SYSTEMMODAL, "Result", $sResult)
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm