diff --git a/.cspell.json b/.cspell.json
new file mode 100644
index 0000000..028c818
--- /dev/null
+++ b/.cspell.json
@@ -0,0 +1,5 @@
+{
+  "version": "0.2",
+  "language": "en",
+  "words": ["FLAMP"]
+}
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..dcda5f5
--- /dev/null
+++ b/README.md
@@ -0,0 +1,75 @@
+# fqt - FLAMP Queue Touch
+
+## Desired Use Cases
+
+Do a lot of checking.
+
+Prompt user. They don't use this tool often. Guide them and prompt them.
+
+Allow prompts to be overridden with `-y|--yes` or `-f|--force` and by piping `yes` command?
+
+```shell
+$ fqt filename.k2s
+2023-06-02 02:00:00 -04:00
+2023-06-01 22:00:00 Z
+Yes Compression, base 64, block size 64: D6F6
+No Compression, base 64, block size 64 : A123
+
+$ fqt -z filename.k2s
+2023-06-02 02:00:00 -04:00
+2023-06-01 22:00:00 Z
+Yes Compression, base 64, block size 64: D6F6
+
+$ fqt -r filename.k2s
+2023-06-02 02:00:00 -04:00
+2023-06-01 22:00:00 Z
+No Compression, base 64, block size 64 : A123
+
+$ fqt -b128 filename.k2s
+2023-06-02 02:00:00 -04:00
+2023-06-01 22:00:00 Z
+Yes Compression, base 128, block size 64: D6F6
+No Compression, base 128, block size 64 : A123
+
+$ fqt -s96 filename.k2s
+2023-06-02 02:00:00 -04:00
+2023-06-01 22:00:00 Z
+Yes Compression, base 64, block size 96: D6F6
+No Compression, base 64, block size 96 : A123
+
+$ fqt --base256 --block-size=96 filename.k2s
+2023-06-02 02:00:00 -04:00
+2023-06-01 22:00:00 Z
+Yes Compression, base 256, block size 96: D6F6
+No Compression, base 256, block size 96 : A123
+
+$ fqt 20230610151423 filename.k2s
+Before:
+2023-06-02 02:00:00 -04:00
+2023-06-01 22:00:00 Z
+Yes Compression, base 64, block size 64: D6F6
+No Compression, base 64, block size 64 : A123
+
+After:
+2023-06-10 15:14:23 -04:00
+2023-06-10 11:14:23 Z
+Yes Compression, base 64, block size 64: EF45
+No Compression, base 64, block size 64 : 5D4E
+```
+
+```text
+-b64, --base64              Select encoding scheme.
+-b128, --base128            Default is base64.
+-b256, --base256
+
+-s, --block-size=SIZE       Sets block size in multiples of 16, default 64.
+
+-z, --use-compression       compression yes, common for large files like bulletins.
+-r, --no-compression        compression no, common for smaller files like signatures.
+
+--no-date                   Suppress dates display in output.
+-h, --display-hash          Display hash alone.
+-q, --quiet                 Minimal output.
+
+-f, -y, --force, --yes      No prompting before changing file date.
+```
diff --git a/fqt b/fqt
index ed7a10c..542dc08 100755
--- a/fqt
+++ b/fqt
@@ -64,6 +64,9 @@ LongHelp()
    echo '  BS  = Block Size, 1 or more characters'
    echo '   |  = Field separator.'
    echo
+   echo 'CRC-16/MODBUS 20230607013934:flamp-file.k2s1base6464 D5C6'
+   echo '  needs localtime file dated 20230606213934 America/New_York.'
+   echo
    echo 'Usage: fqt [OPTION]... TIMESTAMP... FILE...'
    echo 'Update a file'\''s timestamp helping recreate the hash, or queue id, in FLAMP.'
    echo
@@ -145,5 +148,99 @@ UTC_TOUCH="$(date -d "$GIVEN_DATE"Z +%Y%m%d%H%M.%S)"
 # YYYYmmddHHMM.SS
 # 202306062139.34
 
-#echo touch -mt "$UTC_TOUCH" "$2"
+echo touch -mt "$UTC_TOUCH" "$2"
 touch -mt "$UTC_TOUCH" "$2"
+
+
+function calc_crc16( )
+{
+# Modified from
+# https://github.com/onslauth/bash_crc16/blob/master/crc16-table.sh
+
+	# poly=0x8005
+
+	declare -a crc_16_table=(     
+	  0x0000 0xC0C1 0xC181 0x0140 0xC301 0x03C0 0x0280 0xC241
+	  0xC601 0x06C0 0x0780 0xC741 0x0500 0xC5C1 0xC481 0x0440
+	  0xCC01 0x0CC0 0x0D80 0xCD41 0x0F00 0xCFC1 0xCE81 0x0E40
+	  0x0A00 0xCAC1 0xCB81 0x0B40 0xC901 0x09C0 0x0880 0xC841
+	  0xD801 0x18C0 0x1980 0xD941 0x1B00 0xDBC1 0xDA81 0x1A40
+	  0x1E00 0xDEC1 0xDF81 0x1F40 0xDD01 0x1DC0 0x1C80 0xDC41
+	  0x1400 0xD4C1 0xD581 0x1540 0xD701 0x17C0 0x1680 0xD641
+	  0xD201 0x12C0 0x1380 0xD341 0x1100 0xD1C1 0xD081 0x1040
+	  0xF001 0x30C0 0x3180 0xF141 0x3300 0xF3C1 0xF281 0x3240
+	  0x3600 0xF6C1 0xF781 0x3740 0xF501 0x35C0 0x3480 0xF441
+	  0x3C00 0xFCC1 0xFD81 0x3D40 0xFF01 0x3FC0 0x3E80 0xFE41
+	  0xFA01 0x3AC0 0x3B80 0xFB41 0x3900 0xF9C1 0xF881 0x3840
+	  0x2800 0xE8C1 0xE981 0x2940 0xEB01 0x2BC0 0x2A80 0xEA41
+	  0xEE01 0x2EC0 0x2F80 0xEF41 0x2D00 0xEDC1 0xEC81 0x2C40
+	  0xE401 0x24C0 0x2580 0xE541 0x2700 0xE7C1 0xE681 0x2640
+	  0x2200 0xE2C1 0xE381 0x2340 0xE101 0x21C0 0x2080 0xE041
+	  0xA001 0x60C0 0x6180 0xA141 0x6300 0xA3C1 0xA281 0x6240
+	  0x6600 0xA6C1 0xA781 0x6740 0xA501 0x65C0 0x6480 0xA441
+	  0x6C00 0xACC1 0xAD81 0x6D40 0xAF01 0x6FC0 0x6E80 0xAE41
+	  0xAA01 0x6AC0 0x6B80 0xAB41 0x6900 0xA9C1 0xA881 0x6840
+	  0x7800 0xB8C1 0xB981 0x7940 0xBB01 0x7BC0 0x7A80 0xBA41
+	  0xBE01 0x7EC0 0x7F80 0xBF41 0x7D00 0xBDC1 0xBC81 0x7C40
+	  0xB401 0x74C0 0x7580 0xB541 0x7700 0xB7C1 0xB681 0x7640
+	  0x7200 0xB2C1 0xB381 0x7340 0xB101 0x71C0 0x7080 0xB041
+	  0x5000 0x90C1 0x9181 0x5140 0x9301 0x53C0 0x5280 0x9241
+	  0x9601 0x56C0 0x5780 0x9741 0x5500 0x95C1 0x9481 0x5440
+	  0x9C01 0x5CC0 0x5D80 0x9D41 0x5F00 0x9FC1 0x9E81 0x5E40
+	  0x5A00 0x9AC1 0x9B81 0x5B40 0x9901 0x59C0 0x5880 0x9841
+	  0x8801 0x48C0 0x4980 0x8941 0x4B00 0x8BC1 0x8A81 0x4A40
+	  0x4E00 0x8EC1 0x8F81 0x4F40 0x8D01 0x4DC0 0x4C80 0x8C41
+	  0x4400 0x84C1 0x8581 0x4540 0x8701 0x47C0 0x4680 0x8641
+	  0x8201 0x42C0 0x4380 0x8341 0x4100 0x81C1 0x8081 0x4040 
+	)
+
+	input="$1"
+	# crc=0     # for CRC-16/ARC
+   crc=65535 # for CRC-16/MODBUS
+
+	len=${#input}
+	for (( i = 0; i<len; i++ ))
+	do
+		char=${input:$i:1}
+		j=$( printf "%02x" "'$char" )
+		declare -i buf=0x${j}
+		crc=$(( crc_16_table[ ( crc ^ buf ) & 0xff ] ^ ( crc >> 8 ) ))
+	done
+
+	printf "%04X" $crc
+}
+
+crc16=$( calc_crc16 "123456789" )
+echo "crc16 : 123456789 : $crc16"
+echo "CRC-16/ARC    BB3D"
+echo "CRC-16/MODBUS 4B37" 
+
+DEMO=20230610151423:flamp-file.k2s1base6464
+crc16=$( calc_crc16 "$DEMO" )
+echo "crc16 : $DEMO : $crc16 "
+echo "CRC-16/ARC    D9F6"
+echo "CRC-16/MODBUS D5C6" 
+
+echo
+# echo UTC_TOUCH "$UTC_TOUCH"
+CONVERT_BACK_TO_DATE=$(echo "$UTC_TOUCH" | sed 's/\(....\)\(..\)\(..\)\(..\)\(..\)\.\(..\)/\1-\2-\3 \4:\5:\6/')
+echo CONVERT_BACK_TO_DATE "$CONVERT_BACK_TO_DATE"
+OFFSET=$(date -d "$CONVERT_BACK_TO_DATE" +%z)
+echo "$OFFSET"
+FLAMP_DATE=$(TZ=':Zulu' date -d "$CONVERT_BACK_TO_DATE $OFFSET" +%Y%m%d%H%M%S)
+echo FLAMP_DATE "$FLAMP_DATE"
+CONVERT_BACK_TO_DATE=$(stat -c %y flamp-file.k2s)
+echo CONVERT_BACK_TO_DATE "$CONVERT_BACK_TO_DATE"
+FLAMP_DATE=$(TZ=':Zulu' date -d "$CONVERT_BACK_TO_DATE" +%Y%m%d%H%M%S)
+echo FLAMP_DATE "$FLAMP_DATE"
+DEMO1C="$FLAMP_DATE:${2}1base6464"
+crc16=$( calc_crc16 "$DEMO1C" )
+echo "Compression On : crc16 : $DEMO1C : $crc16"
+DEMO1NC="$FLAMP_DATE:${2}0base6464"
+crc16=$( calc_crc16 "$DEMO1NC" )
+echo "Compression Off : crc16 : $DEMO1NC : $crc16"
+echo
+
+DEMO2="${1}:${2}1base6464"
+crc16=$( calc_crc16 "$DEMO2" )
+echo "crc16 : $DEMO2 : $crc16"
diff --git a/given.txt b/given.txt
new file mode 100644
index 0000000..6c62e7a
--- /dev/null
+++ b/given.txt
@@ -0,0 +1,19 @@
+given:
+20230607013934
+
+-04 hours (because my computer is EDT?)
+
+output:
+202306062139.34
+
+
+2023 06 07 01 39 34
+
+2023-06-07 01:39:34
+2023-06-07 01:39:34-0400
+
+# 20230607013934
+GIVEN=20230607013934
+GIVEN_DATE=$(echo $GIVEN | sed 's/\(....\)\(..\)\(..\)\(..\)\(..\)\(..\)/\1-\2-\3 \4:\5:\6/')
+# 2023-06-07 01:39:34
+UTC="$(date -d "$GIVEN_DATE"Z +%Y%m%d%H%M.%S)"